The problem with ending it at death is that it gives an incentive to kill the author if you want to rip off their work. The 14+14 (as it originally was) is what I think it should be.
Copyright is a menace to the society. Authors should maybe have a right on their work similar to what 2-clause BSD licence gives: if you reuse or distribute this, mention me please. The complex web of influences on each word spoken and each gesture made, let aside artworks altogether, is so complex that a consistent and just enforcement of copyright is just impossible. It serves no other purpose than making some companies and some greedy agents like the suers here rich, exploiting artists worldwide.
Actually copyright should be the 14 years + a one time extension of 14 years which can only be applied for by the living original creator
Copyrights by corporations are 14 years only, no extensions