I live in Minneapolis and there are murmurs about a return home for KG centered around a KG for Thad Young swap. It makes some sense. Minnesota sells tickets for a few months without improving their roster and unloads a year of Thad's contract. BKN gets a look at Thad Young in their bid to make the playoffs. Also, KG has stated that he would like to be part of a majority ownership group that would purchase the team from Taylor. This would be a nice transition period for him.
From the Celtics perspective, it's a mixed bag. We want the worst for the Nets. Young is a serviceable player. A lot of the chatter on the web involves the nets unloading Lopez, but I would not be surprised to see KG involved.