I will act as Lead Developer, which I have done for Rick before when working on the V2 .2 book as well. There are already several groups that are part of the playtest team, and helped with the Trial Army lists. Those groups will get assigned rules-changes to test and report back on. Some issues will be put up for "global" playtest feedback at certain stages, with the emphasis on PLAYTEST feedback, as it is all to easy to comment on rules without actualy trying them in several battles with different army-composition, terrain layour etc.
The current questionair is set-up to get additional feedback from the community at large, in addition to material already reported on earlier by the various parts of the playtest team.
And yes, this will be a community effort, it is unlikely that GW will pick up on this and publish it, but we can. If Net-Epic could manage, then so can we ! As things stand now, if we manage a concerted effort, then we can put it out towards Rick, which would make it as official as it can get in MY book !