What endgame content would you like to see?

[Kailok]

I want attacks by monsters on towns/cities.

Definitely this. I seriously miss Beseiged. I always wished that Campaign would also stretch to the nations and have to battle there as well.

I'm hoping to see the oldschool beastmen make a return in this game for something like this, as well as some Garlean invasions. It's nice that for once we're actually at war with another nation, but I want to fear the beastmen tribes too.