Not to mention a lot of us have grown older and wouldn't have the time or maybe even the desire to play anymore. I for one, would probably be willing to waste some life on it again.
The question is how, only thing I could think of is trying to get the server as close to how it was mid Bastion but with a new map and some upgraded mechanics. Do a really nice promo video before it comes out, redo the wiki, then do a really nice informative bulk mailing list send out and whatever other means HC has of communicating with previous players. It would have to prove for itself that it really had some time, money, and hard effort put into it. But EVEN then would that really work?