Gild is off the lily with Saban? No way. At least not yet. He's just 1 season removed from a national title appearance and 2 removed from a title. He'd need a couple more seasons like last year before they told him to retire.
As far as who replaces him, I honestly don't know because I don't think Dabo or Kirby will go there. Alabama's first 2 calls have to be to those 2 guys for due diligence purposes; it'd be management malpractice to not ask them if they wanted the job, but I don't see why either of them would go there at this point, especially Dabo. Kirby is already at home and would likely match any Alabama offer. If Dabo hadn't won a national title yet, I think he'd take the Alabama job in a heartbeat. However, given the fact he's already won 2 at Clemson, is a god there, has an easier path to the CFP there, and they'll pay him whatever he wants, I don't think he'll leave.
I could see Lincoln Riley (especially if he hasn't won a title at Oklahoma yet) or Jimbo taking the job. If Pruitt has won an SEC title at Tennessee and proven himself more, I could see him taking the job.