I think his Fox News show is too lucrative for him to consider a run, but much stranger things have happened in this year alone. If he did somehow run, he would have a better chance than most candidates at inheriting the die-hard Trump base since he is a political outsider who is more populist on economic issues than the vast majority of elected Republicans.
when not a if and i am sure everyone will agree trump make trump tv a thing he will get carlson to join because fox is screwed once that happens