I expect M&B2 to be leaps and bounds improved where graphics and physics are concerned, considering they must have earned a whole lot of money thus far, I will be puzzled if they aren't.
Feature wise? I like the combat how it is ( i.e the mechanics etc ) but they can still improve alot on animations and weapons themself, people talking about 6 hit/block directions etc, sounds stupid to me tbh, bit too tedious for a game like this. But there is certainly a whole lot of stuff they can add to the combat.