4.) Sasha Banks will turn heel against Bianca Belair
This is a rematch from WWE Elimination Chamber, where Baszler and Jax retained after interference from Reginald. Now, the WrestleMania opponents will team up once again to challenge for the gold.
The women's tag team division on WWE's main roster is a complete mess at the moment. Baszler and Jax regained the titles from the makeshift team of Asuka and Charlotte Flair at the Royal Rumble.
The majority of the tag teams are down in NXT, but they recently got tag titles of their own. Then you have actual tag teams like the Riott Squad that are not being used to their full potential. The tag titles are also holding back Baszler, who should be booked as a strong challenger for the RAW Women's Championship.
Meanwhile, Banks and Belair have the potential and star power to main event one of the nights of WrestleMania this year. However, the feud has no fire at the moment and has lost a lot of steam. WWE might use this match at Fastlane to ignite the flames. The best way to do that would be to have one of the two turn heel, and Banks is the best option.
After seeing all of the backstage footage of Belair after her WWE Royal Rumble win and the promos she has done since then, it feels almost impossible to boo her. On the other hand, Banks is a much better heel than a babyface. It also seems like Sasha is already heel even though she is supposed to be a babyface. Her character has not changed much since she feuded with Bayley. So, if anyone is going to be a heel in this feud, it should be Banks.
The most likely outcome for this would see Belair get beat down for the majority of the match. Towards the end, when she goes for the hot tag, Banks steps off of the apron and walks to the back. This would add more intrigue and fire to a feud that is severely lacking it at the moment. It would also give fans something to talk about in what may not be a noteworthy event.