#3. A no DQ match
Brock Lesnar is a part-timer who does not care about WWE or any of the WWE superstars, and refuses to show up or fight anyone unless the time and money are right - WWE has been reasserting this point throughout last 12 months. Roman Reigns has used this point in his promos in the build-up to their match at Wrestlemania 34. Seth Rollins has been throwing this point around for the past few weeks.
Thus, it would only be poetic justice if some of the RAW superstars join forces in a no DQ match to help Finn Balor bring back the Universal title home to RAW.
A similar scenario was used at TLC 2018. Since Braun Strowman was not medically cleared to fight Baron Corbin, he used the help of every superstar who was tormented by Corbin's authority. A similar storyline could be used here.