#luuke skywalker

Hux. Short version, Hux reveals Kylo killing Snoke to the FIrst Order leadership. Hux ousts Ben and becomes Supreme Leader. Now Hux plans to exterminate The Jedi, force sensitives everywhere and lead to the death of the force. Long version read here.

Kylo as the villain. Adam Driver said the plan was never to redeem Ben Solo, that was a late change to appease everyone. So my big pitch for Supreme Leader Kylo Ren. To me Kylo Ren is what Vader could’ve been had he reached his full potential. A Vader who was never wounded on Mustafar, a Vader who killed a close family member and his master. He is the villain they were looking for, but no they had to course correct.As for what his motivation could be, exactly what he said. Finish what Vader started. Destroy the Light and reign over the galaxy as Supreme Leader. Long version. Other look at Kylo as the villain

Snoke's essence transferred into Kylo Ren the moment he killed Snoke.

Darth Plagueis was a powerful Sith Lord who could influence the midichlorians to create life and also save others from dying. He taught everything he knew to his apprentice, Sheev Palpatine (aka Darth Sidious), but he eventually lost his power and young Palpatine killed him in his sleep. How could Plagueis not foresee his own demise at the hands of his ambitious apprentice? Why did Plagueis suddenly “lose his power”? The truth is, he didn’t lose his power and he knew Sidious planned to kill him. It was part of the plan. By dying, I believe Darth Plagueis was able to transmit himself into Sheev and assume control of his body, almost like an infectious disease. Ever notice his name? Darth Plagueis. Plague, as in an infectious disease. Darth Plagueis unlocked the secret to immortality by moving from one body to the next, continuing his lifespan through multiple hosts over countless years. Ever wonder why Palpatine was so obsessed with training a powerful young apprentice? Surely he knew that one day the apprentice would want to overthrow him, so why train his own murderer? In Return of the Jedi, Emperor Palpatine continually provokes Luke to strike him down. Why would Palpatine want to be killed if the goal is longevity? Because Emperor Palpatine was assumed by Darth Plagueis and, through his death, he would then be able to transmit himself into a new host body. He wasn’t just looking for an apprentice, he was looking for a new body since Palpatine’s body was growing old. Luke Skywalker was meant to be the next host body for Darth Plagueis. But unfortunately for Plagueis, Darth Vader had a change of heart and defeated the Emperor. Snoke was Plagueis. It’s the only way to make things work. StarWars.com describes Snoke as a seeker of arcane and ancient lore, and the Last Jedi Visual Dictionary shows that he is a collector of rare memorabilia. At some point, Snoke must have found the wreckage of the Death Star on the forest moon Endor, and was infected by Darth Plagueis when he came upon the corpse of Palpatine. Did you ever wonder why Snoke thought it was so important to complete Kylo Ren’s training? It’s because Snoke was Darth Plagueis and he was training his next host body. Plagueis didn’t have a choice but to infect a really old political influencer like Snoke. Kylo was being groomed to become the next host body. Remember the infamous scene in The Last Jedi where Snoke is “predicting” how Kylo Ren will kill Rey? Wasn’t it a little too obvious? Wouldn’t Snoke have been able to foresee Kylo’s treachery? See through his conflict? It’s because he wasn’t predicting Rey’s death, he predicted his own. He knew Kylo would kill him. He deliberately bullied and provoked Kylo in order to stir his anger into hatred to further fuel his dark side and lead him to completing his training.

So Darth Plagueis goal would be to transfer his essence into Rey and in failing in that. He will drain the life force from the Dyad to satiate his own life force.

Thrawn. Cardinal West's Sequel Trilogy rewrite has the best take of Thrawn as the villain

Rae Sloane.

Rae Sloane founded The First Order! Sloane was loyal to the Empire, so much so, rather than allowing it to cease to exist, she recruited other loyalists and they fled to the Unknown Territories beyond Jakku. She founded the First Order. Together with Hux, she could usurp control of the First Order and become Supreme Leader, which would start a civil war, those loyal to Sloane and those loyal to Kylo. We can have someone who could be a great antagonist to Leia. The founder of The First Order and the mother of the Resistance. What makes Rae a compelling character is the fact that she believes what the Empire is doing is right. In her eyes, the Empire is doing the right thing, purging lawlessness from a galaxy overrun by bureaucrats that care little for the common people. She’s wrong, but like great villains before her, audiences can see where she’s coming from even if they don’t agree with it. Throughout her many appearances in the supplemental Star Wars narratives, she is constantly pushing for the Empire to be “just.” When things start to fall apart after the Battle of Endor, Rae struggles to keep the remnants of the fleet playing by the unspoken rules of warfare and is frustrated to see the Empire careen into backstabbing and incompetence. You can see Rae’s influence in the First Order with its strict hierarchy and minute by-the-books stringency that makes Palpatine’s Empire look positively laissez-faire by comparison. Supreme Leader Rae Sloane would make The First Order a force to be reckoned with and what better way to end it than with the First Order’s founder?

The Grysks.

The Grysks were introduced in the new canon novel Thrawn:Alliances. They are what brings Thrawn to the Empire in hopes of co-existing to fight this threat in the Unknown Regions. Grysks are a species living somewhere in the Unknown Regions. Creatures half of myth, whom few have ever seen. It is said that they are nomads, with no fixed home, traveling in spacecraft so numerous they blot out the stars. They are said to be terrifying warriors, overwhelming their opponents by sheer numbers and ferocity. The fact that these intergalactic conquerors are not the main threat in the Sequel Trilogy is baffling. You could’ve had Ben Solo sense they were coming during his Jedi days and made the ultimate sacrifice to become Kylo Ren and join The First Order because he knew the New Republic was not ready to face such a threat. It wouldn’t make what he was doing the entire trilogy right, but it would make explain why he turned and what his motivations are.

I don't really have a explanation for Qi'Ra, but she was trained by Maul, took over the Crimson Dawn and you don't waste Emilia Clarke on one movie that never continued. So Qi'Ra as the villain could've worked.

A Mandalorian invasion lead by Fett writes itself.

I know it's technically Palpatine, but it works better because we don't stupidly retcon Anakin's sacrifice. This was planned, but the idiots that be decided it would be better if Ian played him. So instead this is the perfected clone. The Clone Wars were a test for Palpatine to perfect cloning. Throughout the reign as Emperor, he tinkered with cloning force sensitives, created a lot of failures(Snoke) but prior to Endor, he perfected it and kept it as a fail safe should he die. And after Kylo Ren killed Snoke, he awakened. Palpatine reborn. The movie opens at the end of the war. Finn successfully consurs up a Stormtrooper Rebellion and all the FO officers are executed, Hux is captured and Rey beats Kylo Ren for the umpteenth time. The First Order are on their last legs. Until a message is delivered to the galaxy.

“People of the galaxy. Your Emperor has returned after thirty long, lawless years. To the Sith and the Jedi; follow the Holocrons. We have much work to do. Those who remained loyal to me shall be rewarded. For those who relished in my demise, who celebrated what they thought the end of the Empire and believed their treachery had won them the galaxy…only death and suffering await. The great error shall be corrected. The day of victory is at hand. The restoration of the Empire! The Final Order! The Day of the Sith!”

And it's a race. Rey and the Resistance hoping to stop The Emperor, while Kylo Ren is hoping to kill Palpatine, obtain the power of the Sith Eternal and an infinite fleet that will win the galaxy, but in the end, Rey and Kylo are forced to work together. Matt Smith as Palpatine could've fixed the movie

The final contingency of the Emperor. Cloning Luke Skywalker. Palpatine had foreseen either Luke will kill him and Vader or Vader will betray him. So Palpatine orders that Luke's hand be brought to him. Luke is cloned, but imperfectly. He is just a husk of power, so Palpatine has the greatest minds of the Empire indoctrinate this malleable clone to being the heir and the eventual savior of the Empire. This clone. Let's refer to him as Luuke. Luuke learned everything there was from Palpatine. His Machiavellian cunning mechanisms. Mastery over the dark side and fully believed in his master's will and plans for him.

Luuke foresaw that there would be problems if he revealed himself. SO he created a puppet, Snoke. Through Snoke, he turned Kylo Ren to the dark side and puppeteered The First Order. Masterminding everything from the shadows and after Snoke and the real Luke Skywalker's deaths, it was time to reveal himself.