Regarding the change: I don't necessarily agree with you about the schematic changes in the NFL being here to stay. I think as with Cam, and to a lesser degree, Vick before him, you'll see opposing teams being able to figure it out after some time in the league.
I think what is changing, is the mentality that QBs aren't football players. The dynamics of QB play is changing, and that is here to stay. But over time, you'll see the spreads/options/pistol QBs regressing back to the mean and trying to become pocket passers.
Wilson, schematically, is more comparable to pocket passers than he is to Pistol QBs...the difference is that he's more willing to use his legs than the other traditional QBs.