Here's how I see it, based on the previous fight.
Jones has a massive advantage at distance, and with his wrestling. He took Daniel down almost whenever he wanted to, and Daniel couldn't get him down to save his life aside from the one he got. DC's success mostly came in the clinch with dirty boxing, and I don't see him having a chance in any other facet of his game. If he starts landing more often than he did in the first fight, Jones has the ability to take him down, or fight him at distance. Jones is also the best we have ever seen at smothering opponents (in my opinion), so I wouldn't even give DC the advantage in the clinch, where I mentioned before that he had the majority of his success in the first fight.
Think of how the fight ended. DC had a single leg on Jones and Jones was so sure that DC was not going to get him down that he put his hands in the air while bouncing on one leg. Do you think there's a chance at all that DC, who was an Olympic caliber wrestler, has made such leaps and bounds in his game that he will be able to get Jones down this time? When his age is taken into consideration along with the amount of time he has worked on his wrestling in his life, the law of diminishing returns can be applied. There's no way he's improved enough to get Jones down at will.
DC's only chance, in my opinion, is to land a shot that REALLY hurts Jones. Jones has been historically good at taking shots and slipping them just enough to not get rocked, but I don't doubt that DC can land something to hurt him. I doubt that he will, but I don't doubt that he can.
The mentality of Jones is a big factor here. A lot of guys have situations like his and they lose their confidence or their focus. A lot of times, a crazy lifestyle helps professional greatness because it serves to distract from the immense pressure. In this particular match up though, I think the physical gifts of Jon Jones are so substantial that they will override any personal issues. He is arrogant enough to not lose the zone like so many other troubled athletes do.
Overall I'd say Jones wins as easily as he did the first time (which wasn't a cake walk, but wasn't exactly a nail biter either). Jones -250.