My primary concern is all of the works that die because they're no longer commercially viable but are still locked away; I'm actually willing to make an excepti

My primary concern is all of the works that die because they're no longer commercially viable but are still locked away; I'm actually willing to make an exception for the rare blockbuster hits if it actually means everything else becomes available. My thinking is author's life for unpublished works (to protect works-in-progress), 10 years after publication unconditionally, followed by a sequence of renewals that require some level of public availability to be granted. Obviously, there's a lot of details to be worked out: What constitutes publication? How long is the initial unconditional period? How many renewals are allowed and how long is each? What are the actual requirements to get a renewal?