I would say that in the event that the EW should die, the wolves would have to then know each others' identities.
It's starting to sound like a really interesting plan... I wouldn't mind giving it a shot. The worst that can happen is that it doesn't work for what ever reason - too lopsided, two players with too much power over the game, etc. That would be the biggest problem that I can see, as others have already said - two players moving around pawns. With a new wolf spawning every night, it seems fairly likely that the wolves would win though. I think the villagers would almost have to hope that after two or three nights (seer, ranger or seer, ranger, hunter) the wizards would die, leaving them with fewer wolves to deal with.
It would certainly add a whole new dimension to the question of who, individually, can say they won - the wizards died early, oops, neither of them win; at least half the villagers changed roles at least once during the game, therefore in some way helping both sides - oops, none of them really won; and most of the remaining villagers are probably already dead... Moderator wins!
