I think Bob Iger is pragmatic and would cut POW! loose in a minute if he had to, just like Stan did to Arnold Schwarzenegger (Governator) when it became inconvenient. Let's face it, Stan does gets mixed up in bad (maybe illegal) business deals.
Until (or is it when?) we get to that point, I think they will keep holding their shares and hopefully keep paying POW! $1.25 million (or more, inflation) for Stan's consulting service. I also think Disney is still the most logical choice to buy out POW! when Stan decides the time is right.
I also think the Lieberman estate is still holding. Partly because one son is in the comic book IP business and partly because the shares aren't worth selling. I think they are in the same boat we are in, waiting for one of the movies to start shooting.
Edit
Besides, who would Disney sell to? No one is clambering to buy stock in Stan Lee right now.
