The band was wildly popular from 1990 until 1996 when the members went their separate ways. They reunited without Williams in 2005.
When the host of "Friday Night with Jonathan Ross" asked Williams whether he intended to collaborate again with the group, the BBC said the singer replied, "Yes, I hope so."
"We've got together, done bits and bobs. I can't say much," he added.
Williams recently returned to the music scene after a three-year-break. His latest album "Reality Killed The Video Star" is set for release in England Monday.
"The decision was made for me; I've always been very nervous," Williams told Ross about the hiatus and his subsequent comeback. "You don't know what's going on in my head. It's traumatic, really scary. I ended up in rehab again. It was, 'What are you doing to yourself?' I thought, It's time to break the cycle.'"