That would make no sense. He's inexpensive, young and has enough upside to be a decent stretch four/fourth big. Given all that, I'd be surprised if he goes unclaimed.
As for Blatche, maybe the Cavs or Hornets just decide to take the risk, but I doubt anyone commits to him for 3 years, particularly at decent money. The Spurs probably won't pursue him if he does go unclaimed and become unrestricted, but they should. His talent far exceeds that of any other fifth big option and if there's any environment he's going to "figure it out" or "get it" in, it's got to be this one, I'd imagine. And if all went according to plan, he could usurp Bonner in the rotation and upgrade the biggest weakness in the rotation, while also raising the ceiling of the team, even if just slightly.