I admit that I'm skeptical about any of King's efforts to write for a visual medium, because he hasn't really done well -- with the possible exception of Kingdom Hospital. As long as King is masterminding the actual plot, I'm content to leave mechanics of scripting to someone who knows the medium.

I have no familiarity with Peter A. David, but...depending on what King has in mind for these first seven issues, there's a definite place in what's missing in canon that will lend itself to a total lack of optimism.