Jesse’s DNA and fingerprints are all over the NN compound. Won’t they hunt him down?
Why would they bother to check DNA? They’ve got a big ass meth lab, a whole bunch of dead nazis and Heisenberg, all with the stuff to make the mythical blue meth and even some blue meth on hand, that case will be closed before the bodies are cold nobody is going to bother swabbing for DNA when they have half a dozen dead bodies to blame it all on. And Jesse’s been gone for a while. There will probably be some who were thinking he was buried with Hank and Gomey who are surprised to find only 2 bodies, but other than that nobody will care. Even if he resurfaces in ABQ as himself, with Marie alive they should know he was trying to help make the case and will assume he went into hiding when things went bad and when he heard about all the deaths came back.