Well, seeings how we've had one dead remake, a couple branch off's that failed or are failing, I don't think we can just go back to PGF.
Especially since it got "upgraded" to Zetaboards. It's a lot worse than Invisionfree (although made by them), and it was one of the causes of the death of the forum.
The PGF community is holding on by a hair, but the body has died, and there's really no hope for a comeback.
We scattered throughout a variety of forums, and I still keep in contact with a few of the old members, but all in all, PGF is lost...