Crabs is no Kobe....for that reason alone, I expect him to be done for this season.
It's also quite possible that Crabs will never be the same again....that's an injury that very few athletics recover from. When he does recover, he'll be a step or two slower. An Achilles is also a terrible injury for receivers because so much of their effectiveness is based on their ability to cut, stop, and explode into their breaks. Those are movements which will be severely impacted by a damaged Achilles.