He has had one of those core injuries... Like Cheechoo had a hernia like one where many who have this injury never get back their core strength. When he was playing on the Sharks most of our non-Burns or Karlsson D men could almost only throw the puck down the rink hoping to not get a icing or pound it on the boards to get it out, often with the results of it coming back in and having a shift even with a our one good line getting hemmed in and wasting their shift. Hatakka could spin and move and get room to get it to partner in a good position or get the puck to a forward with a good breakout possibility.
He has been out almost two years and him ever getting back to where he was is just a lottery. I think with your young D group they may try to get him some AHL time to build some value but there is a, IMHO, a 65% chance he will never get back to 95% of where he was, just bad injury luck for him plus it was a Short Sample Size so it could have been a mirage of him being a 4th to good 5th Dman. If he comes back it will take at least a half a season till he would be ready I think.
I would hope you release him and he comes back to the Cuda (AHL) and recovers and gets back to where he was or gets back to where he seemed to be with another team not in our division.