I don't think Cormier will have much of a shot against Jones. People are throwing out names of fighters he's beaten that are way taller than he is, but neglect to state that those fighters were by in large stationary targets. Jones is not a stationary target at all. The guy may not be Anderson Silva, or Frankie Edgar but he's not gonna allow DC to stalk him down and simply do as he wants with him.
For DC to get ahold of Jones, he's gonna have to be willing to eat a multitude of shots before getting his hands on him, and Jones has shown that he can play the distance game was well as anyone without taking a lot of punishment, or getting grabbed.