Hall expressed that’s mainly due to the fact that he hasn’t heard an idea enticing enough to bring Dexter Morgan out of the wilderness and back into the spotlight, which is a totally valid reason few fans should be upset with.
That said, Michael C. Hall doesn’t seem all that interested in reviving Dexter at the moment.
Basically, if the Bay Harbor Butcher is coming out of retirement, there better be a damn good reason for him to do so.
More and more shows no one thought would make a comeback continue to do so.