#3 Special guest referee
Well, this may be the most obvious one - purely because of the history between these three men. If Michaels was interjected into the match, while he could be a competitor, it's much more likely that we see Michaels play an important role in a singles match between Taker and Trips.
So, what better way than to relive one of the most iconic matches, and scenes, in WWE history?
The last time we saw these guys, it was truly the "end of an era" - so if they're all in the ring again, it would only be fitting to relive it - although maybe without the Hell In A Cell structure around them this time. The match at WrestleMania 28 saw Undertaker go 20-0 in his WrestleMania streak when he pinned Triple H and a reluctant Michaels administered the three count. An emotional reunion may be on the cards.