The authors of the spiritual successor of Rollcage - GRIP are making a second game called GRIP XR.

Personally GRIP was already a great success to me and if I had any say I would be happy with just a polishing update for GRIP (bugs, more MP lobby options) instead of a completely different variant but after playing the demo for a bit I am not going to lie it feels good too.

https://www.kickstarter.com/projects/cagedelement/grip-xr-a-futuristic-combat-racer