#2. Another multi-person tag team match
Roman Reigns and Seth Rollins came to Dean Ambrose's aid on Raw, fighting off Baron Corbin, Bobby Lashley, Drew McIntyre, and Elias. This will likely set up an 8-man tag team match at Fastlane pitting the Shield and Braun Strowman against the four heels.
It would be a nice feel-good comeback match for the Big Dog, but could something similar take place at WrestleMania as well? The mid-card scene on Raw has been a frustrating mess for months now, with the only solution being the post-WrestleMania superstar shakeup. So maybe, we will get another variation of the same concept.
If Reigns is not ready for one-on-one action just yet, he could team up with Strowman, Ambrose and possibly Kurt Angle, but not Seth Rollins, in another multi-man tag team match. It is the only way to get all of these Raw mid-carders on the main card of WrestleMania, without them going anywhere near Finn Balor and his Intercontinental Championship.
It might be a lazy booking decision, but a potentially necessary one. Anyway, WWE's new season always starts after WrestleMania. If this does take place, expect shenanigans galore.