Hey, since it's Unreal Engine why don't we call it unrealRiven?
I'm not sure "Masterpiece Edition" is enough. Myst: Masterpiece Edition is not realtime. That's realMyst's job. I'd prefer it be call realRiven if it didn't, as a previous poster mentioned, make the title look a bit odd. It should have Riven in the title, it wouldn't be giving the original game enough credit to call it otherwise.
I think it should also have something about being 3D in the title though, be it "Unreal Edition" or "Riven 3D" or just some kind of reference to the fact it is Riven, and that it is a realtime game. Because that's what it is: Riven, but with a realtime component.
-Starry Expanse isn't a good name for the final product because it neither clarifies that it is Riven, nor does it make clear it's a 3D remake of Riven.
-Riven: Masterpiece Edition is better because it makes clear it's Riven, but it doesn't specifically clarify that it's a 3D remake.