mm well, I agree with you where you said no to the avatar. Then we could have full voice acting because SoV was amazing with that, imo.
I think children characters should be done more like Holy War, where the actual characters can marry w/ support growth. Also like you mentioned, Asugi/Rhajat/Caeldori were terrible from a personality standpoint. Same could be said for like 70% of fates characters tbh
Better villains too, please. Garon was that one cliche abusive parent starting tHe TrAgEdY oF CoRrIn's cHilDHooD, and the other villains were bland.
Maybe an artist, the artist for SoV was amazing (forgot their name oops) & I'd love to seem them again.
Better character developement/personality. Seriously the characters in fates were really cliched, there were only a few good ones? And some okay ones? charlotte <3
By 3rd party classes do you mean 3rd arc? Because Archsage and Dreas fighter rocked.
ALSO, I'd love to see more unique models. Like, not having all the Priestess characters having the same colored/same type of outfit, for example. It'd be really cool if they had a unique outfit, like for their first class.