NuHumans are the most wasted potential in Marvel comics.
If the Inhuman royal family are going to continue being morally grey occasional villains (which they should be! because monarchy & everything it represents is gross), NuHumans would've balanced them out perfectly if they didn't always become chummy with the Royals.
Give me Down to Earth Inhumans stories, show me the struggles NuHumans face with adapting, but don't tack on the exact same prejudice sublot of the Mutants onto them. (Terrigenesis is less dangerous to the regular human people around them than Mutants randomly activating deadly powers, they shouldn't be feared the same way/for the same reasons.)
Give me the Inhuman royals trying to recruit NuHumans to rebuild their kingdom & NuHumans turning them down.
Give me NuHumans who resent Black Bolt for unleashing the Terrigen cloud on them, stealing their agency (something Karnak & other native Inhumans had), & having powers forced on them with no choice.
Give me the royals grieving that they can never truly rebuild Attilan with NuHuman "replacements" and being forced to accept the new status quo, maybe even learning to understand that it's better for the survival of Inhuman species to be diverse instead of being a singular nation easier to target by enemies.
Heck, maybe Crystal or Queen Medusa can even make a comment about one of the isolated Mutant islands and reminisce about what the Inhumans have lost.
Give me the Inhuman royals not being royals anymore because they don't have enough subjects.
Lastly, give me more Maximus cameos! He's too darn funny & charming to exclusively be Black Bolt's personal villain. Let him be a pain in the ass to more characters than just the Inhumans.