He's got little to no motivation to come back to hockey and understandly.
He has moved onto the next phase of his life which is spending more time with family and his sporting passion of being an extremely good golfer.
Savard was a very immature arrogant weasel type player in junior and early on in his career. He matured dramatically later on in his career. Just because the guy is an incredible athlete doesn't necessarily mean terms like "warm hearted" are the best words to describe him.
After a long time of headaches and memory problems, he's finally enjoying his life now. He's enjoying coaching his kids and is playing golf a lot.
He obviously want to, and has reported saying he wants to come back, but if he does, he's said it won't be until the end of his career. Now that he's enjoying his life and is actually healthy, I doubt he, (or his doctors,) take the risk of losing it all for nothing.