Hurray for Hobbit! ie I'm in!
It would be a good thing for me to reread it from cover to cover. Haven't done that in a long time!
I like the idea of new threads. Partially because I don't want to read through the old ones.
On the other hand, it would be an incentive for me to read them... Disregarding that, though, it's a question of whether you want repetition on different threads or on the same thread. And on a new one, you can actually be part of the discussion as it happens... In other words, I'm good either way.