By all means deal Wentz if you can, but I don't think you can. Howie will need some kind of Passover miracle.
So my guess is not only will he be back, he will be the presumptive starter unless he is obviously broken in training camp. The team has so many things working against them next season that they might as well run it back. If by some insane miracle Doug and Wentz get their shtein straight and pull a productive season out of their asses, the crisis is averted. More realistically the season is used to turn around the team financially, land a sweet draft pick for 2022, and set things up to start the rebuild under a new coach in 2022. Give Hurts some run over the second half of the season again and see if there's any justification to build around him or whether they're back in the QB market in 2022 or 2023.