All I want is for same-turn enemy reinforcements to be nerfed so they're always level 1 units with joke weapons. (Log, Ladle, etc.)
Or just not be in the game at all, either one.
What would be fantastic is if they added the Link Arena from the GBA games and gave it wifi. They'd probably have to make separate servers for the two versions because you can grind for xp in the Hoshido version.