ABY probably won't be back... Davee, the site owner has been an absentee landlord for over 3 years, and while he is a bit "reactionary" (seems to fix things only when terminal issues arise... like two years ago when the front page message was posted), I think the promises of an all-new ABY are lip service. His ego is still holding onto the ABY dream.
Davee has pissed a ton of people off, primarily because of screwing people out of $ back when he was selling (and not mailing out) ABY merchandise, and secondarily because of his complete disregard for the website over the past few years. People kept going back to ABY because it was the biggest, not necessarily the best. Now that it's gone, people are joining up with other websites, primarily RUPadded.com... Which while similar, is a marked improvement over ABY, both on the forum software and moderation level.
Personally, it's sad to see ABY go... It's given me a portal to meet hundreds of new friends, both online and IRL. THat said, sometimes it's best to move on to bigger and better things.