I almost posted this morning the things I've heard but didn't because sometimes people get annoyed with me when things don't 100% happen according to rumors.
The Josi diagnosis supports what I've heard: there's massive concerns in the org that Josi won't be able to play at the level he has been. They aren't looking to trade him, but limiting minutes etc next year may be a really real thing. I haven't heard anything about retirement.
Marchy I have heard is getting traded. 100%. TOR and MTL are frontrunners.