I've heard suggestions to that effect, several months ago. It wasn't speculation. From what I heard, if you're on ESA and in the WRAG, you might have to do the work programme until you either find work or fit the criteria for the support group. For now, hold onto the fact that it's only "might", not "will".
Sorry about what you're going through, and the lack of definite information. VP has access to the B&W site, I haven't. He's been fluey for a week and is crashing further. Right now I'm too tired to think straight for long.
BTW that last bit is a statement of fact, nothing more.