So about these ladies that we see here. A few theories..

Lady on the far left in red, this could be the new version of Kala, whom I mentioned previously in another post. Kala was a military commander for the Drule in Voltron Force and was the person behind the revival of Lotor on that show. While her outfit is very different, she does bear some similarities to the original Kala

High ponytail resembles the roman like mohawk the original had on her helmet. She also has the same flat nose, yellow eyes and V like shaped design over her brow that extends to the bridge of her nose in this case. The ears can be seen as the edging of the front. Number two to note, the lady in Front, could be a gender bent form of either Mogor or Cossak. Both men worked directly under Lotor, and while she doesn’t quiet look like either she seems to be taking some of their styles.

Mogor is a large imposing person who has a very thick body and a darker color skin tone, as well as a thicker neck and face. Certainly the body stance resembles him. However we also can see some Cossak in her.

The wider ears makes me think of his horns. So this lady could be a mix of both of them, and be the one that Lotor has the most faith in?

The one that’s really interesting in the back is the lady with the purple hair. And my mind went to the Rebel leader Dorma of Drule. Her brother was the head of the the Drule commanders and later came over to the side of good, after their father who was in the rebellion convinced him to help Voltron.

Similar hair, similar eyes, and skin tone.

 One thing that really stands out about her is her outfit. It’s the same as the weblum Galra.

Not the best of shots, but it’s clear that these two are the same person. So this could pick up that old trail. This could be Keith’s half sister, Dorma, if they so decide to keep her name as such. You can see that the suits are the same, the gun holster is the same, and the gun is the same. Given this information, we could have a potential ally for the team in this member of Lotor’s squad who feeds them info or switches sides.

For the record, in the original, Dorma’s brother was Hazar: 

And her father lead the rebels against the Drule empire: 

and this is followed by his friend the Commander Bakki

Kind of Reminds me of someone...Oh Yeah, Kolivan

Lastly we have the chick with the cat, and the weird tail. we can see that when she’s attacking Hunk and pidge in the trailer that just came out.

Her design reminds me of the Quran character from Mass effect “Tali”  tali'zorah (thank you to the person that pointed that out to me). With the covering of the face. I’m guessing she’s got more then one set of eyes and given the claws on the feet and the tail, it’s safe to say she’s probably the Storm Shadow of the group, and the assassin. Leaving the larger lady the brusier, the Weblum Galra, the sharp shooter, and the other lady probably the spy master and so forth.