There's no rescuing of Pinkman. Walter let Jane die, and he told that to Jesse's face. He then handed him over to the gang to be killed. That led to Andrea getting killed when he refused to cook for them.
The only hope for Pinkman is that Walter kills the gang and then sends someone else to free him. But Walter doesn't have anyone that can free Jesse and Jesse ratted him out to Hank. It could be argued that the cops might not be able to convict Walt if Jesse's dead, but if Jesse is alive he's going to jail forever.
The gang are definitely getting killed. They've got $70m of his money and they murdered Hank. It really didn't make any sense that the gang would let Walter live after Hank was shot.
Walt wasn't cheated out of his money by Gray Matter, was he? He lost out on the fortune because he left the company because he'd messed around with her. They then got stinkingly rich after he left, but he wasn't cheated out of the money, he walked away from it.
I think the interview they gave on the Charlie Rose show was something that they needed to do for the good of their company. It wasn't true that Walt had so little to do with their company, but of course a billion dollar company is going to try and distance itself from the world's most notorious meth cook. I don't think he's going to kill them for it. They created the spark that is going to blow up Albuquerque, but I don't think they'll be in the blast. They would have paid for all his medical bills, they would have probably given him a huge chunk of money to cover his work, but he chose not to because he'd rather earn it cooking meth.
