I think he's headed in the other direction. He lucked out that AB missed a third of the season and Terry Rozier had a disappointing year. It's hard to believe, but Rozier somehow turned out to be almost as bad a shooter as Marcus.
I would say his best chance its to hope that we make a major trade. If we draft Fultz or Ball, and don't trade Jaylen, he's going to have to live with playing at most 15-20 minutes per night.