I always have a little bit of worry whenever one of the DOOM threads pops up that maybe someone knows something. Which is irrational becasue they pretty much never, that I've noticed, had any stats to back up the claim, just an attempt to read tea leaves.
I'm thinking the player council is a pretty significant tea leaf. One year terms with no one allowed to sit on the council for consecutive terms? That suggests to me that Turbine is planning at least several years ahead and they don't think (world events notwithstanding) the end is nigh.