Watching that fight, I found myself marveling at the length of Jones. Not only is he tall, but his limbs are so...long. As he becomes more technically skilled, he'll use that length even better than he does now and will become very hard to hit. Combine that with his champion-wrestler pedigree, remarkable creativity, and explosive athleticism, and I think he has a ceiling higher than anyone else in MMA right now.
I agree with those who think that Jones will be champion in 2-3 years. He is like a pre-Hughes GSP in that everyone sees the greatness, but he may take a loss or two while he becomes more polished. And, like GSP, he will be almost unstoppable by his mid-twnties.