I don't know they will be able to return for too long (if at all). Thisis probably the beginning of the end for DVDFab. Unless they find a way to take on (and hopefully bring down) AACS LA, DVDFab will be nothing more than an empty shell of its old self. They won't be able to compete with programs like Handbrake or DVD Syler, which do the same things decryptionless DVDFab can do.
Meanwhile, Slysoft is probably trying to decide if they should be happy at the loss of competition, or scared stiff of being AACS LA's next victims. Hopefully, they will be able to find a way to take the offense before they too are taken down.