And it looks like Simon & Schuster has started publishing new trade paperback versions using the same covers as the mass-market books.
You are exactly right. I just clicked on every new cover on the S&S site and starting last month and going through December 2018 are the schedules for re-releasing the covers they already did (as well as the ones they hadn't yet) in the Gallery Books Trade size versions. Exactly like they released the MMP versions before.
I guess the title of my discussion can now be changed from New Mass Market cover reprints...derailed?
to New Mass Market cover reprints...derailed!