I’d rather not say whether we are going to actually behold Mr. Treadaway or not.
...and if this the third season of Mr Mercedes is really the last season.
It will really depend if Audience Network feels they have enough subscribers watching Mr. Mercedes to justify keeping it going. I have confidence that writers David E. Kelley and Jonathan Shapiro can make up their own Bill Hodges story without a Stephen King book to base it on.
He also talked about if Bruce Dern's part is just a cameo and how Morris is the new Brady.
Read more over at Slash Film