-- The feeling is that Roman Reigns winning the Universal title is imminent and probably likely to occur in Saudi Arabia at the Greatest Royal Rumble event, because it's doubtful that Vince McMahon will book him to lose a cage match. The popular belief seems to be that McMahon has not given up on Reigns but has simply postponed his title win to a later date.
-- However, there remains an outside chance that McMahon could abandon a Reigns title win altogether and go with someone like Braun Strowman instead, due to the fact that Strowman is significantly more popular. The downside with Strowman is that he's not as versatile in the ring and would need to be protected more in his matches and booking.
Source: Wrestling Observer Newsletter. Subscription information & prices available at f4wonline.com