Yeah it seems likely that the new album will be kind of BM oriented... I'm really looking forward to seeing how Opeth can push the genre to new limits.. hopefully we'll have an album to lay alongside 'Prometheus'.
What I'd really like to hear more of in the Opeth sound is the use of samples... atmospheric type things, or more atmospheric guitar effects. D&D just weren't layered enough to be considered 'classics' to me... there just isn't that kind of depth that you'll find on albums like Still Life. I have a feeling with this new BM thing they may bring the dual melodies back to the table... and being an avid Orchid fanboy, I would die for that. Anyway, the use of more keyboard 'aaaahs', string ensembles, rain sounds etc. etc. Just more things to add to the atmosphere. The last 2 albums have been really lacking and very straigthforward... especially Deliverance, who's riffs really disappoint me.