I agree with Maxwell completely.
Either way, he's a one-term senator. At least as a Democrat he would have some power and wouldn't be completely hated.
You guys might be right. It wouldn't shock me. I'm just saying there's a chance that McConnell and his caucus try to make nice with Orman to keep him on the team as a buffer against likely losses in 16. Orman likewise can "keep to his word" to his constituents and spend the next 6 years repairing bridges with the KS GOP to overcome a primary challenge (which he may well decide is even less of a threat than running for re-election as a Democrat).
Again, it wouldn't shock me if he caucuses with the Democrats, majority or not, I'm just saying the chance of him sticking with the GOP majority isn't zero (but yeah, probably less than 50/50).