Well, he seems to be doing OK.
"Jack's health continues to improve after his successful liver transplant surgery. To receive so many kind wishes has helped Jack greatly with his recovery."
Today I picked up an album called "The Jack Bruce Band Live '75". This is from a version of his group that apparently only lasted a few months and up until recently there were no known recordings of them. Fortunately, this concert showed up and it's really very good. They mostly play tunes from "Out of the Storm" and "Harmony Row", which is fairly unusual.
The band is Bruce, Mick Taylor, Carla Bley, Ronny Leahy (kbds) and Bruce Gary. Too bad they didn't last longer. This is a surprisingly strong set.
Here's AMG's take: Live '75