As stated in another thread, my gut feeling is that there are far too many issues to make this a viable and more importantly safe platform.
On reflection, it should have been cancelled 8 years ago. How did they resolve the issue associated with the nose wheel, where the pressure required to support the weight of the aircraft was too high, and would risk a blow out on landing. Fundamentally it was one of many issues that required a completely redesigned fuselage IMO.