hank cant do shit about it though all his medical bills were paid for with walts drug money
Here is Hank, doing shit.
My long-winded prediction below:
Hank will act weird as fuck around Walt and Skyler for a few days while he gathers evidence and information to substantiate and cement his new realization that Walt was connected with Gale. Does Hank realize Walt himself is Heisenberg at this point, or just a cog in the meth cooking operation - who knows? But Hank will confront Walter at his own house days later. Walter and Hank will argue, nearly coming to blows, over Walter's involvement in the meth business and how Hank is going to bring him in. At this point, Hank will discover Skyler dead, as she had smoked the ricin cigarette. This will come as a shock to both Hank (who assumes Walter killed Skyler as a means of covering his tracks) and Walter (who won't know why Skyler is dead, but will be too overcome with emotion to be reasonable with Hank).
There will be a draw of weapons. Hank will fire first, but Walter will fire last. He'll leave in his wake, Hank, dead from a gunshot, and Skyler, dead from ricing intoxication. Marie will take parental ownership over Walt J..Flynn and the little shit. Walter will attempt to make contact with Jesse, who will shut him out one last time (deserving) and Saul will try to arrange an escape plan for Walter.