"James Joyce died in 1941 and the copyright in his work expired in 1991. Then the EU extended terms to life+70 years, and the work went back into copyright in July 1995. The estate has been very active in enforcing their copyright, suing regularly. While some of their actions have been aimed at issues such as protecting the memory of Joyce's daughter Lucia from scrutiny, other suits have been against non-commercial uses of the works by fans. As such, they seem solely concerned with the financial health of the estate [admittedly one of their roles] having no concern for nurturing the greater cultural legacy of Joyce." via CultureCat: Rhetoric and Feminismm

"What happens to the rights to derivative works published during that time?

Depends on the Estate. Tom Holt was told his "Mapp and Lucia" novels, based on the works of E.F. Benson, couldn't be reprinted. Marcus Rowland's "ABC" role-playing game, based on "With the Night Mail" by Rudyard Kipling, carried on with the Estate's tacit approval." via Funferal

Das ist des Pudels Kern! Was passiert mit Werken die "rückwirkend" copyright erhalten? Was passiert mit Arbeiten die sich explizit auf ehemals freie Bücher beziehen? Kommen diese Bücher alle auf den Müll? Werden die Buchverlage im vorauseilendem Gehorsam kleine Bücherverbrennungen veranstalten?

Eigentlich wollte ich ja zur Europawahl gehen, aber im Moment bin ich Stinksauer.

siehe auch frapp.antville

Wenn es knüppeldick kommt kann man sich schon einmal bei banned books auf die schöne neue Welt vorbereiten.