Well, the problem is to balance the number of regionals as you will have to cut down on something to be able to implement such an enlarged (50% more) number of factions without having vanilla sized rosters...

It would also be nice to know how many RTW code leftovers are in MTW2 and how much they could be used as stuff like shield wall and schiltrom could be nice but maybe also something like the old senate might be interesting to see and implement over the new system...