I still think JR is going to have to use a valuable asset to get JJ off the roster. Even with all of the teams around the league that have cap space and/or need blueliners, JJ is so bad that it doesn't even matter. Rust or Bjugs will be sacrificed to get a team to take JJ, and honestly, I'm not sure Bjugs has the value Rust probably does. Hopefully McCann excels in the coming weeks/months while Bjugs is out and makes him expendable too.
Ideally, by this time next season, we won't have JJ (and sadly, Rust, as I talked about), Gudbranson, Bjugs or ZAR on the roster. That's a lot of free space to re-sign the appropriate guys or chase someone this summer in FA.