Probably nothing new.
I'd like to see option to increase cap of books you can give to specialists. Probably with some item.
Leveling system for generals - with each battle they gain some personal exp, with each level they gain fixed (or selectable) boost (maybe stats increase, maybe some ability).
I'd really like to play this game in dedicated desktop client. Now i have to open the browser, open the website, click already registered, login, login, play. Every time...
Loot chance from every enemy. maybe some broken wpns you could repair with special building, or something.