I haven't been here in a long while but with someone who has experience in this department I can make a couple suggestions, I think.
 
Avoid vBulletin 5. vBulletin 5 is pretty bad for both parties, and there's been lots of complaints about it on a few big boards I'm a part of that use it. Personally, I use XenForo, which is maintained by two of vBulletin's original developers. It's very well-written software and easily extensible.

hi Meng  i am little late on the posting however  +125%  for me what ever is good for bandlab thanks for asking eric

Now that our DAW has been reborn, is there any decision about what will happen with the forum?

We can call the new forums Sonar forums

If you keep the story, no matter of where we're going!
Thank you Meng!