I'm thinking there's a reason why WWE agreed on making a new belt, the Crown Jewel Championship.
The reason might be because they plan on letting Cody Rhodes lose the Undisputed title. But who is he going to lose the title to? No one else but the Rock.
If Cody loses the Undisputed title, he'll be a man with no title and that'll seriously affect his image so perhaps that's the reason WWE would make Cody win so that if he doesn't have the Undisputed title, at least he still has the Crown Jewel Championship and he's still a champion.
The Rock promised Cody Rhodes that he'll come back for him and it's going to be title versus title, champion Versus champion. The Undisputed champion Versus the People's champion. If Cody beats Rock, Cody becomes the people'd champion and WWE can't let that happen.
They'll make the rock win and then Roman will have his eyes set on the Rock. That's when we'll final the long awaited match between Roman Reigns and The Rock for the Undisputed WWE championship. That's when Roman will reclaim his title and I don't know how long he's going to reign as champion the second time but it'll be super long.