I dunno. I think he will be a QB, but one who will sit and learn first. He maybe used in wildcat formations, but his true skill is QB. The best scenario is for him to go behind an aging vet QB and learn.
That all depends on how high he gets drafted & how much money he can command. If Tebow goes in the upper half of the first round there will be tremendous pressure to play him right away. If enough teams think highly of Tebow then this is a real possibility.
Perhaps the best thing to happen to Tim Tebow would be for him to go low-first, high-second. He'd have a shot at learning the position in the pro game (though he may re-define the position eventually).