#1 The Shield destroys Brock Lesnar

Finally, The Shield reunited this past week on Raw. Roman Reigns and Seth Rollins were already ready to reunite one final time, but Ambrose was refusing to do the reunion. As soon as Baron Corbin, Drew McIntyre and Bobby Lashley arrived to ambush Reigns and Rollins, Ambrose ran through the crowd area and helped his Shield brothers.
Both the groups are scheduled to face each other at Fastlane. The Shield would definitely pick up the win but there is a possibility of Ambrose turning during the match and beginning a feud with Roman Reigns for WrestleMania.
As reported, Ambrose is set to leave the company after his contract expires in April, so there is no need to continue The Shield reunion for a long time. However, The Shield are advertised to compete in multiple live events following WrestleMania 35.
So, the Hounds of Justice could be together until after the Show of Shows. As we know, Seth Rollins is scheduled to face Universal Champion Brock Lesnar at the event, so The Shield's next target could be The Beast, as The Shield has beaten down every big WWE superstar such as Triple H, The Rock, Batista, and John Cena.
The only big WWE Superstar that is remaining is Lesnar, who has yet to be targeted by The Shield; if they attack Lesnar, not only will it bring some excitement in the stale feud between Rollins and Lesnar, but The Architect could possibly walk out as the new Universal Champion after WrestleMania.