While I'm glad the old school scene is doing well, I believe we have too many choices nowadays, at least in game systems. I'd be a lot happier if even one or two publishers were making settings or adventures, instead of yet another variant of 0e/1e/3e combo system. I'm sure many will disagree, but that's my opinion.
I'd much rather have another Carcosa than another ruleset. Carcosa is a great setting, and includes just the rules pertinent to running it, instead of remaking the wheel.