I think the biggest question is will he be running for POTUS on the R ticket or VP on the D ticket? I could easily see Hillary having him and the media have an orgasm over the “new bipartisanship”.
NJ Fatboy would be in his mid 60s in 2024 and primed for POTUS.
Perhaps Christie, after getting crushed in the GOP Primary, will pull a sweetie move like mr. sweetness in Florida, and run as a Democrat.