Reelected? He didn't even want to be president in the first place. Most likely he ain't going to make it there either health-wise or politically, but in case he does, he will use an excuse for not running. I don't think even Reps would want him to run again, they would rather pay off his debts... I mean seriously, the fucker already can't put a normal sentence together, add in 3 years of Alzheimer/dementia and we are talking about changing diapers...
As previously discussed. I don't place his interest in running again as being high or even moderate. He has another life and has rung the white house bell. And he sees pence somewhat as he sees gorsuch, as an extension of his legacy...so he can leave and feel like he is not abandoning ship.