Another way to pull this off, and keep Roman a permanent face, which is what Vince wants, is to let Trips win at WM. Vince wants to make Roman like Cena, where no one can question his toughness or integrity once he went face, like you can't find any dirt on Hogan unless you went to the 70's (kayfabe).
Then let Roman beat him at Backlash and keep the belt until Summerslam. Cesaro should return by right after Backlash and they can have a respect feud, as Cesaro was the last face that pushed him to the limit.
Cesaro wins at SS, and maybe flips the belt a bit (preferably either keeping the belt the whole time or losing to Lesnar at Survival Series), but beats Lesnar at Rumble, where Roman wins again. Roman's mythos already has him skated to be a multiple Royal Rumble winner. Then they have the rubble match respect feud at WM 33, where Cesaro can pass the torch to Roman, and they become the Hogan and Macho of the new WWE, with respect face feuds.
Roman just needs to lose for character development and allow Cesaro to carry some weight as the champ on top. The demographics (and THC distribution) support a titanic shift to America being more European, and Cesaro could be the personification of that.
The problem with WWE is Vince thinks like a stockholder. They want things to be consistent and safe. He's ignoring giving the consumers what they want, which he didn't do with Hogan. He gave him actual face and heel rivals for the belt, that were credible. Cena ruined wrestling, because of his pluses. He was always going to be there, and he heals like Wolverine. It made WWE complacent, until age and other interests forced them to need a new face RIGHT NOW.
Gotta give the fans more than one or even two choices of titans on top. When faces like Seth Rollins, hopefully Bray Wyatt, and others get older or go heel, Roman and the younger generation can have that spot. As Tony Sporano once said, "there's enough garbage for everybody".