In some of the concept art, the Bucaneer appeared to have two seats - Are you planning on releasing a two seater variant at some point?

No, the Buccaneer has only ever been planned and designed as a single-occupant, cockpit only seat. This also goes to show just how easy Jim Martin has been to work with on the concept of the Buccaneer, as when we saw those earlier versions leaning towards a 2 seat craft, he was extremely fast and accommodating to bring the ship back in line to the intended spec. There are no plans to provide anything other than a single-seat version.