Unless he changes his mind again.

Thanks Taker_2004 for the banner!
Well it looks like Reigns is turning heel after last nights Raw. Obviously know that he's going to be booed out of the building going against Bryan for number one contender, so making it a threeway at Mannia means that they can keep the fans happy whilst also getting the man they want into the main event still.
So pretty much its exactly last years triple threat main event.

Taker is reported to be in awful condition with his knees (no surprise there), so there are doubts as to whether he'll be able to compete at Mannia. People reporting that they say him recently and he looked like he could barely walk.
I saw a news report like that. The source was, and I quote, "someone" ... so at this point, I'm ignoring any news reports on his condition and just waiting. Taker knows what he can do and I wouldn't be surprised if he goes into Mania against Wyatt and steals the show, like he does most years.

Thanks Taker_2004 for the banner!
Apparently Vince has changed his mind again, the main event will be a three way.
The night after the Rumble, he said he didn't want to go to the well too many times. I think he was right, but should have known that meant putting Bryan in the spot and not Reigns. Still, he's backtracked as he so often does, and now we're getting all three! So it's quite likely that Bryan is once again sneaking into the main event to steal the belt from two company favourites. Hell yeah people power.