Stephen King's Dark Tower series

I just heard that Stephen King's Dark Tower Story is getting a new addition in the form of a comic book. Apparently this story is between Wizard and Glass and The Gunslinger, which makes sense if you're a fan of the series. It's ironic that this is coming out now - I was just rereading the series this month.
One thing that bothers me - the books seemed to go downhill after Wizard and Glass. I'm still a fan of the ending - the ending after the ending for those of you who stopped - even though I know a lot of people weren't. There's something that fits Roland's dark romanticism about his endless repetition, but this time he has what he needs so it's uplifting in a way. The rest of the books in between just seemed too hokey, like Mr. King lost sight of the real world of the gunslingers and just added our world when he felt he couldn't get in touch with theirs anymore. Perhaps this is because I read the stories before W&G, before it seemed there would ever be anymore books. Many fans know what I mean - the original days when Dark Tower books were few and far between, and before the "may it do ya" and "thee" were introduced into The Gunslinger. I enjoyed the way the story seemed to be going through The Drawing of the Three and The Wastelands...and it seemed to dissipate after that. Perhaps this story, like many others before it, outlasted the author who wrote it. Sam Kieth's The Maxx comes to mind, although the author admitted it was time to move on at the end of that one.
It all seems to serve as a reminder: finish your story before the ending leaves you.