There is a lot of conflicting things about this. A week or so ago, Dana said that they were in contract renegotiations with Jones and then yesterday he said that wasn't the case and that Jones wants Cormier. So who knows what is actually true.
While I don't agree, the champ has a lot of power in who he fights, especially someone like Jones. It used to take a lot to get Anderson to fight certain opponents and this is no different. We could see this with Johny also as he may not want to fight Robbie for his first defense.