#4 Have an altercation between Seth Rollins and Brock Lesnar

Let us be honest here. WWE has failed terribly to build up Seth Rollins as a credible opponent for Brock Lesnar. Rollins only had one altercation with Lesnar, and the Beast got the better of the Architect.
Most of the fans excited for WrestleMania are waiting for either the triple threat main event, or the storytelling brilliance in the WWE Championship feud, or the clash between Batista and Triple H. Not many are excited about the Universal Championship match, and we cannot blame them.
How Brock Lesnar ruined another wrestler's career - Watch Now!
WWE should have an all-out attack segment between Seth Rollins and Brock Lesnar if they want the fans to get invested in this feud. WWE had two and a half months to build this feud, and they squandered that opportunity.
#3 No Ronda Rousey segment

While WWE officials did not do much with the Universal title feud, they saturated the RAW Women's Championship feud far beyond anyone's expectation. What was once promising to be an outstanding feud between Ronda Rousey and Becky Lynch has now turned into a convoluted plot that destroyed the entire women's division in WWE, except for the three women involved in this feud.
Thus WWE should not do anything with this storyline on this episode of RAW. Instead, Ronda should visit SmackDown LIVE to face her challengers in their own den. Such a move would at least freshen things up a bit. Even though Becky Lynch and Charlotte Flair have visited RAW many times after the 2019 edition of Royal Rumble, Rousey has not returned the favor yet.
A top WWE star is missing in action