It might be a bit optimistic, but I'll give it a try:
Alabama: Robert Bentley (R)
Alaska: Sean Parnell (R)
Arizona: Neil Giuliano (D)
Arkansas: Asa Hutchinson (R)
California: Jerry Brown(Gavin Newsom, if Brown declines to run) (D)
Colorado: John Hickenlooper (D)
Connecticut: Thomas C. Foley (R)
Florida: Alex Sink (D)
Georgia: Nathan Deal (R)
Hawaii: James Aiona (R)
Idaho: Raśl Labrador (R)
Illinois: Aaron Shock (R)
Iowa: Terry Branstad (R)
Kansas: Sam Brownback (R)
Maine: Paul LePage (R)
Maryland: Michael Steele (R)
Massachusetts: Scott Brown (R)
Michigan: Stacy Erwin Oakes (D)
Minnesota: Mark Dayton (D)
Nebraska: Don Stenberg (R)
Nevada: Brian Sandoval (R)
New Hampshire: Charles Bass (R)
New Mexico: Susana Martinez (R)
New York: Andrew Cuomo (D)
Ohio: John Kasich (R)
Oklahoma: Mary Fallin(R)
Oregon: John Kitzhaber (D)
Pennsylvania: Allyson Schwartz (D)
Rhode Island: Patrick C. Lynch (D)
South Carolina: Nikki Haley (R)
South Dakota: Dennis Daugaard (R)
Tennessee: Bill Haslam (R)
Texas: Greg Abbott (R)
Vermont: Peter Shumlin (D)
Wisconsin: Russ Feingold (D)
Wyoming: Matt Mead (R)
Agreed- too optimistic! Your Arkansas, Connecticut, Maryland, and Massachusetts predictions are quite good, but your Hawaii, Illinois, and New Hampshire ones are laughable. Quinn is certainly vulnerable, but even Quinn would beat Schock. Remember that it's Illinois- moderate Republicans are formidable, but someone as conservative as Schock has no chance statewide. Dillard and Rutheford could definitely beat Quinn. However, the likelihood of Quinn even being in the race seems small. Daley v Dillard and Daley v Rutheford would be toss-up/lean D; Madigan v Dillard and Madigan v Rutheford would be Safe D.
I'll agree with NH (Bass strikes me more as someone who's more interested in Senate than Governorship, plus Hassan has been doing a good job anyway), but I firmly disagree on Hawaii and Illinois. Abercrombie and Quinn are HATED, and Quinn is running. Madigan was never really chomping at the bit, and Daley declaring leads me to believe that Madigan isn't interested at all. Probably raising money for a future run (maybe 2016?). Daley will have a rougher time getting past Quinn (although if he does the race Leans Democratic), and if he doesn't, the only thing that can save him is Rutherford's awkward speaking skills and general lack of savvy (from what I've heard). Djou is more moderate (no idea about Aiona, haven't looked much into him).