Nagash is dead, which is a 'massive' change of fluff, and sets TVCII as being in a different storyline from actual Warhammer, so Karl Franz may not Ascend. or if he does, hopefully he'll be too busy trying to break the stalemate with the von Carstein Empire to bother us...But he may be a good villain for the later stages when we reach somewhere near his power level (if he's as powerful as I think he is).