What with the timeline over the four series - 7 months or so - the cancer could very easily reappear, and I think Walt almost hopes for it to do so. He's on a self-destructive path, and by giving Hank the incentive to continue his investigation, I don't believe that Walt so much wants to be caught, but he does want his 'time and effort' to be acknowledged in some capacity, and if he does go down, he's going down with a reputation for 'genius'. If he dies, then he dies with a legacy, presumably leaving Jesse with the prison time.
Jesse, with his re-instated purpose, may very likely begin to see Mike as a surrogate role-model, but what with the jaded humanisation of Mike as a character, I believe Gus' overall intentions may backfire. The series is aching for Mike to ally with Walt eventually, it's just a matter of time. The cartel is clearly on the sidelines, appearing from the shadows when they can, and I'm certain that will prove substantial by the end of this season.
There's a definite emphasis on security cameras too. Walt at Pollos, Hank discovering the Pollos lead...It could be the beginning of the end.
...Especially since as of now there are officially 24 episodes left.