It was کہا that at the end of the first movie that Matt was willing to discover the true power of which their abilities came from and also wanting to possibily achieve futher 'controllable' power.
I personally think that they could do a LOT on a sequel..For example, Matt discovering what really gave them their powers, maybe even a return of a character.I don't believe that should have another group of kids finding it because that seems to happen in quite a lot of فلمیں and I would like this one to stay unique.