Far as I know, the Sega CD version of Snatcher is more westernized in addition to being censored. The PC Engine is what the remake of the game is originally for, so that could just be translated and released on the Virtual Console since TurboGrafx-CD is on the way.
And I'm not sure if Rondo would get a release. I asked a friend of mine that question, because it would make sense seeing as how it's being localized for PSP, but he said it probably wouldn't get released, or at least not for a while anyway, because that might detract from sales of DXC.