Walt is out, fellows. No tricks to it.
Symbolism was there ; when we see the shot of Walt going into the medical scanner, upside down, then slowly rotating so that we see him straight again. Perfect imagery.
Cancer made him break bad ; cancer also made him break good.
OK, he's out, and Todd is running the business as the cook. And now the new overlords must take out Walt as he knows too much. It will be the same thing Walt has done to everyone, and it will now be his turn.
Edit - Especially if they find out they are tailing Walt or that his brother in law works for the DEA. Just like what happened to Mike. Seeing as their families always are hanging out, all they would have to do is keep an eye on him for a week and find this. Walt will run not from the DEA but the empire he created, which will be his death.