Buster Posey injury, coming back or not?

Just found out Buster Posey suffered a fractured bone in his lower left leg, so does this mean he will be out for the season? Should i just drop him or keep him? I am aware i have a dl spot, but with other players on the dl, having him use a dl spot just to not come back would be useless. When do you see him coming back into game shape picture.