If Jason Blake moves, it'll be near the end of the day. Teams will try to get other players before him and when they can't and they are falling behind as their opponents strengthen themselves, they will take a look at Blake.
Which is good news for Toronto, as if there isn't much left they can raise the price tag on him.
He supposed to be out 4-6 weeks so he still probably be traded as he'll be close to returning to the line-up.
If Kaberle is out 4 weeks, he'll be out until the end of February. If he's out more than that, he'll be out after the trade deadline. No team is going to throw up a buttload of assets for a guy they have to wait a week or two to play, especially not in the West, where every game matters.