My evidence of this is the presence of the Space Raiders trailer on recent Scorpion DVD titles (specifically, the kung fu caper Force: Five, which I purchased not long ago). Scorpion also posted the artwork above (without comment) on their Facebook page last Fall, along with the posters of a few other Corman titles.
This flick from the tail end of the Space: 1970 era (as I loosely define it) stars Vince Edwards and Thom Christopher (Buck Rogers' "Hawk") and recycles copious effects footage from the legendary B-movie producer's earlier space operas, Battle Beyond The Stars and Android (Hmmm. Wonder if Scorpion might pick up that one?).
As more information about this release becomes available, I'll post it here.