The one's from my wholely owned company would roll over (willed) to my next family member. The 70% of the production company would also roll over.
So they would get the money that comes in from the site(s) and company(ies). They could either sit on it, and enjoy the money, or learn how to run them their selves, and make some nice coin. Or, could always sell them off. I'd be dead, so what would I care.
