I have absolutely nothing to base this on, but a gut feeling just tells me it won't be a concept album. Possibly an album with a "loose theme", but I can't see DT at this point doing a full-fledged concept album. Anything is possible, though!
I am very, very excited for this album. It seemed like DT has finally struck their balance with their new setup, especially after the "BALLS BALLS BALLS" idea that was brought to the forefront in their last couple of albums before MP's departure.