Improved sieges would've been nice. At least more than one ladder per each battle. Magic would've been awesome. Damn, there are elves but no spells?
Improved leadership. So that I don't have to slaughter everything in sight just to gain a little bit more renown to be able to hire a couple more soldiers and still lack the manpower to defeat 800-strong city defenders. Sea battles would've also been cool. Fierdsvain are supposed to be "great warriors on land and sea" but have no opportunities to prove the latter.
Great mod, btw ))