The NASA initiative is an X-plane, intended to test concepts and designs rather than as a prototype of an actual plane intended for commercial deployment. Its size reflects its mission and doesn't mean that commercial planes using concepts from the X-plane program would be that size.

Similarly the Airbus patent, while it reflects a smaller passenger capacity, may or may not have any bearing to something that would be produced.

Potential passenger capacity would be a factor among many, of course, in any sort of commercial production aircraft designs.