I doubt Taker just walks into it too, excited as hell for the next few Raw events. Seriously though SHANE O FUCKING MAC IN THE BUILDING!!Shane is 2-0 at WM, don't break all the streaks.
Seriously though, only way I see Taker fighting for Vince is if the content in the box affects him. Could allow Taker to fight for Vince, all while staying face. Don't think Shane is going to actually compete either. He'll probably name someone in his place, if someone comes to his aid during the match it'd be taken as a heel act. And replacing The Authority with another heel wouldn't be smart.