Whichever version of the Help project ends up being the official one, I plan on being the editor-in-chief, so to speak, as well as the main contributor, unless someone else is feeling particularly prodigious.
My Help project takes a different spin on Help - one that is more standard actually. I will definitely be able to use some of it in the current help docs and vice versa. What I've done so far is mostly not covered in the current help.
I also want to do a help document for the engine/player and I want to do a Monster Manual of hte default monster database, a grimoire of hte default spell database and a catalog of the item database.