#2 The Shield vs Mcintyre, Elias, Corbin, and Lashley
If WWE doesn't like to go that route then they can probably consider the match which they teased on WWE Raw. Roman Reigns and Seth Rollins saved Dean Ambrose from the onslaught by Drew Mcintyre, Bobby Lashley, Baron Corbin, and Elias.
If they want their fans to witness one last match from The Shield before the possible departure of Dean Ambrose then they can go this route. It would be a welcome tribute to one of the best trios in WWE history.
Who knows? If the storyline gets a good reception from the fans, then it might convince Ambrose to sign a new contract and stay with the company. The last thing WWE would want to do is to leave Ambrose when AEW is in its initial plannings.
The Shield had worked wonders for these three superstars and it can possibly reignite their careers, most importantly Ambrose who needs some momentum on the road to WrestleMania 2019.