As a confirmation, we're working really hard to make sure as much of the data is carried over. The only thing we can't carry over is passwords, so when you first log on to the new forum, you'll need to set a new password.
Thanks for the update! Will the hashing function be the same? SHA-256?
This will probably be done over email so make sure the email you have registered with THIS forum is your email and not ... say a burner email account like mailinator or something like that.
This should probably told before to the users by sending a mass PM using a bot and a 'password meter' would be good IMHO.
-MZ