Founder abilities give you every right. They allow you to control who receives what information and who can reach out to alliance. A lot of strife can be caused by the wrong person being listed as a founder (pacts, invitations, enemy listings, etc).
As the wonders get closer the different types of players are going to come out. The serious one's who want to win will focus, band together , and cut their dead weight. The players that are in it just to play will get that opportunity in the academies until we near the end of the game.
The new alliance is going to have problems with what each player brings in from their old alliance. Obviously aggressive players will want to stay aggressive and many smaller alliances will probably be wiped out soon.
Or these huge new alliances may crumble on themselves as everyone fights from the inside. Many players seem to be hitting vm until it all blows over (not that i necessarily approve) and all of these new alliances have to deal with the obvious fact that there will be spies among them.
Hopefully something will shift within the top alliances. A move like this deserves to be followed by some kind of huge op to wipe someone big out. I'm definitely hoping it all doesnt just fall apart out of disorganization.
I'm also curious to see if former members of larger alliances will be taking their own ex-members out to secure islands for the wonders.
It's a wait and see at this point, but I do suggest smaller guys bulk up