Too Easy: TRON 2.0
Old_Newbie remembers playing TRON 2.0 on PC. It was one of the first multiplayer PC games I was able to play over the internet with my brother.
I think TRON 2.0 would be a perfect VR port; not only in a VR multiplayer co-op story mode, but also as a bunch of mini-game VR challenges from our favorite TRON "Games of the Grid": light cycles, disc throwing, tank battles, etc. My imagination is running wild with how well these could work in VR. Did I mention Light cycles?
Current VR capability would be able to handle this perfectly with Vive controllers, as well as the new Touch controllers (Just imagine grabbing, throwing, and blocking with your information disc). The graphical detail wouldn't have to be all that complex to represent "the Grid" either, ensuring easily attained smooth frame rates for uninterrupted presence.
This would be a porting opportunity goldmine. Just my $.02
VR Light Cycles!.. just in case you missed it.