In an ideal world as specified by the 1900 US Congress, even Disney's intellectual property would depreciate over time, and the assets would be the animators who create new intellectual property.
...or their workforce would merely have a lot more animators, musicians, producers, etc and would necessarily produce more content more regularly than simply sitting on a mountain of IP and merely re-marketing it every few years with lots of lawsuits and lobbying mixed in to "protect" said mountain of IP.
They would also be able to re-use and remix the content of others (e.g. competitors) more regularly and the public at large would be able to do the same. Resulting in more content for everyone to enjoy.
