I know some prefer to try and revive pre-existing communities, but there's a lot to be said for creating a follow-up community instead. Mod tools that let you invite folks, create new stickies, delete spam, editing the profile page, adding tags, etc. You could create a sibling community, and then state that's what it is in the intro stickie, and leave an entry in the old community pointing the way (if it's dead, that'll stay up top).

In either case, glad to have more fighting to keep communities afloat :)