At the end of the day, Kane has control of who or where he gets traded to. So obviously he'd have to be on board with the trade. The issue here for Boston is who they would send in return. At this point Chicago is looking to rebuild and looking for key prospects and draft picks for Kane. As many as they can get.
Boston's farm system is slim but they do have first round picks that they can part with. Is that enough to get Kane? I wouldn't think so but perhaps Kane doesn't give Chicago a lot of choice in terms of where he wants to go. As the trade deadline approaches in March, it will be interesting to see how Boston decides to bolster its roster for a cup run.