Unless they're using a super-material (or super-science shields) the stub wings on the underside would cause problems with heating on reentry. There's a reason why vehicles that are expected to return from space have a very flat bottom.
Otherwise I love vehicle concepts based off of ideas from the 1970s and 80s. I still consider the Space Shuttle (1976) and F-16 (1974) to be high-tech designs. Then again I grew up in the 1980s and 90s and the F-22 and F-35 are both "futuristic" designs to me.
I very love airplane designs from 70-80th. F-16, Mig-29, Su-27, NA-335 (proposal from North American Aviation for F-X program, but USAF selected McDonnell Douglas)... Also very love more experimental and unrealised project from cold war era...
I think, that problem with heating will be solved in future. Maybe using super-material. Maybe - electromagnetic forces for control plasma (and heating) in boundary layer. Maybe - evaporation of the cooling liquid at external surface of vehicle. Maybe - all of them. Exist many way to solving these problem.
Скорее следующее поколение Двигатели с режимом ГПВРД (могут использовать атмосферный кислород как окислитель) и посадка на грунтовые фронтовые аэродромы. Это вообще орбитальное транспортное средство для десанта техники на поле боя (да здравствует космодесант! за Императора!)))