Good news is Hamster's done an amazing job with the Konami stuff on PS4-- the versions of Gradius and Life Force they put out are very solid.
The word I've been hearing is that they've been farming out their stuff to smaller Japanese developers who specialize in emulation. If that's true, it explains quite a bit.
The official site does show the NES version of Super C along with the arcade one so I'm hoping the NES Contra will also show up. It'd be an absolute disaster if they missed out on that one.