WI: Disney Company Sold Off in the 1960's To Different Owners

What if following the subsequent deaths of Walt and Roy Disney in the mid 60's, the assets of the Disney company are completely sold off to new ownership? What happens if say the animation studio is sold off to Hanna Barbera, the land in Florida to real estate developers, and theme parks operated by a third party? How does what Disney built hold up over time with different hands outside his own company?
 
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