Hank's own career will be OVER if/when the world knows who Heisenberg is. For a guy with cancer who will be dead in 6 months anyway, and yeah, will probably never see the inside of a cell. I think he does the math and doesn't go public. SKyler will spill her guts and talk him out of it, saying it'd ruin the car wash and the kids would grow up poor anyway. Oh, and skyler would go to prison too.
I think the trashed house, etc will come from whoever isn't happy with Lydia's 60% meth quality suddenly. Overseas bad guys that create a need for a caddy trunk full of guns.