I personally think we would benefit from keeping him but I also have that feeling he may return and be a locker room cancer.

Why would you think he'd suddenly become "a locker room cancer"? He is one of the single most popular players on the roster among fellow teammates from everything I've heard or seen.

No evidence other than a personal feeling. Maybe due to his being suspended and being in a contract year. Maybe he comes back when other backs didn’t just cover for him but excelled?

What do you mean "comes back"? He was there for mandatory mini-camp. He'll be there for training camp. He only missed "voluntary" OTA's because he was training with a route running and speed expert. Numerous veteran players train on their own during OTA's. Everything I've heard from players concerning his suspension is that he got a raw deal and they feel sorry for him and support him 100%. And players are always supportive of other players concerning contracts. Besides, there hasn't been anything negative concerning his contract anyway.