Hopefully he is in shape and ready to work. His last return to action he came back unprepared and put forth no effort.
He cannot be activated until the 27th, which is a long ways away. While I would love to see him on the field, I hope this gives the coaches time to see where he is mentally and physically. If he isn't ready, shut him down and give him until the next season to show his commitment to an org that has been patient so far. Don't force him out there and don't trade/cut him if he doesn't produce immediately