A neat idea I've heard for where the conflict could go is, rather than Scions picking sides of a conflict, instead picking interference vs. non-intervention. Basically run with the actual conflict one might have about a psuedo-colonialist narrative, and have the party split based on 'is it right to take part in deciding who leads'.
I can immediately think where some would fall on that conflict (G'raha's clearly shown no issue with this and Estinien probably doesn't see a problem with it, while Urianger and Thancred would probably prefer to go hands-off), and a few characters that would probably take it more subjectively based on what's going on (Alisaie would absolutely base it on who's contending, Krile would likely defer to Galuf's previous journey). It'd be a fun way to explore the characters, to have the divide not based on which external forces are more compelling, but on how they personally feel about a thorny issue.