Solution: Focus on other talent.
The solution to this is very simple and just involves taking Roman Reigns out of the title picture for awhile and focus on other superstars instead. Now that doesn't mean Reigns can't have a high profile feud or even elevate a midcard title for awhile, but WWE needs to introduce new blood into The Universal title picture.
Another thing WWE needs to do is start using Reigns to elevate other talent on the roster. In fact, with wins over superstars like John Cena, The Undertaker, Triple H, Finn Balor and Seth Rollins, WWE needs to put Reigns in the ring with some of the younger stars and do a John Cena like angle.
Charlotte Flair to return and wrestle a CURRENT CHAMPION?
At least that way Reigns can help elevate the next crop of talented and not become a bland win machine that fans get bored with. It also allows for superstars like Drew McIntyre, Bobby Rhoode and countless others to gain ground on their own chances at one day capturing The Universal title.