Boeing's next project, after the 787 and 747-800 will be the 737 replacement...which in turn is waiting on some new engine designs. Check the Randy Baseler blog at
www.boeing.com/randy for more info on that.
This BWB looks lovely and very 1998 (notice the old house colours on it.....) but BWBs are difficult to control - do a google search on the B2 Spirit control and yaw systems and you'll see what I mean. Once they get a scale model airborne, I'll believe it but for now its too much of a jump. Maybe 2026?