Most likely to be: Kane, CM Punk, Brock Lesnar, The Rock or John Cena. I also thought that Sheamus might be a good idea as well.
No one knows yet.
Shawn Michaels will face undertaker at wrestlemania XXVI
He will sometimes face him only if he is not the WWE Champion at Wrestlemania 29. I don't like CM Punk to face him. Undertaker should face John Cena if he is not the WWE Champion.
At WrestleMania 1, The Undertaker did not wrestle anyone. The Undertaker wasn't in a WrestleMania match until WrestleMania VII (7).
Kane
Edge
No one knows that yet, but at WrestleMania 27, Triple H will face Undertaker.
The Undertaker is coming back to WrestleMania 32 to face Sting and then retire the day after WrestleMania.
cm punk
cm punk
Most probably, yes. i personally cant see anybody beating the undertaker at wrestlemania
john cena
Yes