Earlier quoted context omitted.
You have a deal with a copyright holder? Have you considered taking them to court over it? I'd donate to help get you what their contract owes you, and I'm sure others would, too.
I believe op is referring to the deal between the copyright holder and the public - the public grants exclusive use of the content to encourage creativity, in exchange, the work will eventually become public. In extending the duration a work is protected, the deal is being modified.
And I was referring to OP having no such deal.