I believe he would've broken out of prison sometime during season 3 and went after Ed or Norma? I don't think he'd take a divorce very lightly and would've been mad at them both
That's a fair call.
Also, maybe Hank has a run-in with the 'posessed' Cooper and is instructed to do 'terrible things' until Cooper has no further need for him, and has Hank killed somehow.
"Great. Maybe after the square dance we can all take a hay-ride."
I hope not. I was fed up with him in season 1.
The only way I would've been able to tolerate Hank returning would have been if he showed up and ten minutes later had his head rammed into the wall by Cooper/Bob. I never found him to be a terribly compelling character; his storylines, for me, rank right around those of James/Evelyn and Josie in my book. He just came off like a second-string Leo.
Hank was a one note criminal
"Harry, I'm going to let you in on a little secret. Every day, once a day, give yourself a present. Don't plan it, don't wait for it, just let it happen. Could be a new shirt at the men's store, a catnap in your office chair, or two cups of good, hot, black coffee. Like this." -Dale Cooper