If Shaq can come to terms with the fact that he won't be starting, then its a possibility. He might still want a good sum of money, though.
Shaq shouldn't get anything more than $5 million from anyone, especially in this point of his career. He's no longer the type of player that could start for a contending team so he better get used to coming off the bench. Either that or go play for the T-Wolves or someone who desperately wants to draw fans to their arena.