Actually, I am very strongly in favor of freezing.
It would be stupid of us to delete an island now, and who knows, in two years we have lots of players and need a new island to cope, would we create a new one then? No, we would unfreeze one.
Characters on the frozen/sunken island will not count towards your limits while it is frozen. So you can leave them there, if you want, but you won't be able to access them. Not even to move them off the island later on. There will be a deadline for moving, and after that, everything is put into limbo.
