#4 A huge contract signing involving Vince McMahon with a 'Career vs Career' stipulation
Vince McMahon has tremendous adulation for The Undertaker and John Cena and considering that these two have been the flag bearers of this business for so long, his involvement in this feud is a must.
This dream encounter might not be the most technical bout at WrestleMania this year, but an added stipulation could definitely bring some much-needed relevance to the match.
A possible 'Career vs Career' stipulation genuinely seems like an ideal option. With both John Cena and The Undertaker, being involved in the biggest match of their careers, selling this match like a 'Once in a Lifetime' encounter wouldn't be a surprise.
A potential contract signing with Mr. Mcmahon's involvement on the go-home episode of WrestleMania 34 could upgrade the stock of this match.