At this point, pretty much anything that someone is willing to keep active is a good idea.

I was considering a Harry Potter forum recently, but I'm really not so sure how that would work out. There isn't a TON of big news that goes with Harry Potter, so all of the activity would have to come from Harry Potter discussions, which would have to be heavily censored for spoilers which would be one hell of a job, it just seems like too much work for something that most likely won't work.