see  among others.
Oddly, though, you won't be able to write on the wall of these Community Pages--they can only be edited by experts. You can apply to be an expert, but it's still unclear how they'll be chosen and when that will happen. So they're a bit static now, but no more than the normal Official Pages.
Most of the outside world sees this as potentially splitting from Wikipedia (checking a bunch of articles yesterday and today).