Anders had commented on the album's direction in some press release and he said it's gonna be death metal as usual. I've never listened to a full Bloodbath album before, because standard death metal gets boring really quickly, but I might have to give this a try just because I want to hear Nick growl.
BTW, PL guitarist Greg Mackintosh also has a death metal side project called Vallenfyre, so Nick isn't the first to revisit his roots.
Gothic is a classic record, but I like most of the albums that came out after it more. You should listen to Draconian Times - most fans consider it PL's magnum opus.