For sure there are interesting issues at hand here. I think it would be foolish but economically feasible to trade him right away. Foolish as the return will be less than Heater's value, but economically feasible because for how long would Melnyk support paying Heatley 8 million bucks to sit on his couch at home.
I think for sure there will be no type of legal action either by the team or by Dany Heatley. The contract he signed was done so in good faith, with no duress. This is not a variance on his contract. It's a hockey trade that is being requested, not a contestation of a clause in his contract.
He doesn't want to play here anymore. Unfortunately for him, his contract states that he is contractually obligated to play here for the next 5 (?) years. Provided B Murray keeps signing his paychecks, there really is no issue at hand at all.
If he fails to show up, THEN this could get messy, as THEN he would be in breach of contract and subject to penalty (perhaps withholding a portion of his ginormous salary).
On the hockey side, Heatley would be foolish to block a good trade from happening, unless he truly couldn't give a rat's a$$ about playing hockey. He does have this season to show himself to Yzerman and get his name on a Team Canada Jersey for next year.
IMO he'll be moved as this team has a lot of ground to regain and Murray and Clouston will fill out the team with players who want to play and most importantly, want to play HERE.
It was mentioned here something about creating a precedent for future players. There always have been and will continue to be malcontents who tire of a team during their contract term. Some get moved, others suck it up and play out their contract.
You can request a trade all you want, but it then becomes about the GM deciding to grant you your request. Pure and simple.