Is there a deadline for activating him? Not sure what the delay is. Was contemplating flexing him this week over Jennings but that thought is fading.
The delay means either
a. they don't plan to activate him; or
b. they will at the last possible minute on Monday just to play head games with the Panthers.
Both are possible; but the latter is more likely. Problem is with a Monday night game can you risk taking the 0 if he's sitting in your starting lineup and not activated? Odds of that are low, but how low is TBD. Main considerations IMO are that he's been practicing for several weeks and BB is a secretive game player of the nth degree.
ETA - if you have a bench spot and are high on Vereen but want to hedge this situation a bit, there's Jonathan Stewart sitting on many wires right now. He's good for 5-10+ in the same Monday game, which doesn't sound great, but it's a lot better than a doughnut if you are eager to start Vereen this week, despite the Monday night game and sketchy roster status.