With rumours swirling about it possible happening, I think what many will remark about the Undertaker vs John Cena match, is "What If the Streak still existed?"
Did WWE leave money on the table with the Streak now broken?
Surely, the Undertaker vs John Cena with the Streak on the line would have been something that would have definitely been of interest to many of the casual fans who watched Mania generally just for the Streak match.
Indeed, if it does happen, it will be a big match(probably a retirement/ career vs career match), yet I can't help but feel that like Taker vs Sting, this one would generally have a "What If?" feeling lingering over it...