I think he has a future in the Republican Party. He's the kind of politican the GOP needs. Especially in the next decades, with a growing Latino population, extreme conservatives such as the Tea Party won't win national elections or races in purple or blue states.
He might be Secretary of Treasury in a Christie or Jeb Bush adminstration.
That is what I was thinking as well. Neel Kashkari might make an alright Treasury Secretary or head of the OMB (Office of Management and Budget) in the next Republican administration.