Do you actually believe that the playtesting and/or message board comments will have any impact on the game, at this late date?
They're in the process of putting multiple books and several pieces of software together for release in 8 months, and
they haven't even gotten around to announcing how to apply to be a playtester yet. At this rate, there'll be 5-6 months left to shipping date before the "playtesting" even starts, and there's no way to implement anything but cosmetic changes in that amount of time.
IIRC, this is less time from announcement to publication than with 3.5, and that really was a more-or-less new edition, not re-writing the game from the ground up.
As for the rest of it... Every time a WotC designer tells me they're putting out a new edition to make things even better than before, I don't know whether to laugh or to want to slug them. In 9 years, we'll have seen 3 editions of D&D (by a conservative estimate - the more recent supplements, with reserve feats, Bo9s mechanics, swift and immediate actions, etc. have changed the game far more than the pseudo-edition change from 3E to 3.5) and 3 editions of SW - if every one of those was a significant improvement over what came before, then they either hadn't been trying too hard at the outset,
or the edition coming out in May should be one small step down from the version you get to play in paradise after you die.