Earlier quoted context omitted.
I'm guessing we'll be seeing another one of these before then: http://en.wikipedia.org/wiki/Copyright_Term_Extension_Act
Is there a sensible way to extend copyright on "active" IP that is still being used in new content, while allowing copyright to expire on "dormant" IP that has been left untouched for years? I don't think it's unreasonable for Disney to still hold copyright on Mickey Mouse (that might be the nostalgia talking), but there are plenty of creations from much more recent times that have long overstayed their welcome in th…
Periodic -- say, every 7 years -- renewals with exponentially increasing costs to renew.