I vote "NO" on a him getting back with VR.
IMO, they don't deserve Scott. They had his back as long as they were making money, and then trashed him as a musician, and personally as soon as it started to fall apart. He's the best frontman in rock right now, and wrote all their songs, so trying to replace him was a joke.
I loved his work with VR, it was a nice chance of pace from STP, and his solo stuff... but it was just a side project that burned out too quickly. It was great that they banged out 2 albums and a ton of bonus tracks, and I certainly wouldn't mind more.... BUT I'd much rather have more STP & solo Scott instead.