Opeth fucking suck, every time I see that they're going to be on a show I find a way to avoid them. Quite possibly the most overrated metal band ever, Their singer/guitarist should just focus all his efforts on making death metal with Bloodbath and touring.
No one in the band focuses on Bloodbath so Mikael Akerfeldt could not focus on it even if he wanted to, he really has nothing to do with anything other than coming into the studio after everything is recorded. Bloodbath rarely play live and do not jam/rehearse together.
Opeth could break up right now and a new Bloodbath cd would not come out until around 2012.