I'll admit that is one of the concerns I have that about Odyssey. I worried that the Space Side of the game will be neglected for at least six months while Odyssey 'Beds In', so we're stuck with Powerplay as it, C&P as is and CQC as is. However, as long as Odyssey has fixed a lot of issues with multi-crew, it will be worth it for me.
The biggest question for me really is one of the games direction: did FD feel the game was at a decent point and in reasonable enough shape to bolt on a whole new layer? If so I really have to wonder exactly how FD view engineer balance, Powerplay, CQC etc, because if FD have left them as is, they are repeating past behaviors and not updating what they introduce.