Good chance: Josh Smith (Dayton to Pensacola); Drew Hayes (same); Tony Cingrani (Billings to Bakersfield).
Possibilities: Danield Wolford (Dayton to Pensacola).
Might be possible: Ryan Wright (Billings to Bakersfield).
I do not count guys that start in extended and then jump to Bakersfield, as Stephen Hunt did in 2011. I also am not counting guys that jump from AZL Reds to Dayton, though Chacin would appear to be a guy that may get that opportunity.
It is also possible that everybody on this list jumps one level only, but those are the ones that I think have a shot.