The Rest of the Story?

Five Operatic Sequels We'd Like to See
by Paul J. Pelkonen
Opera has its share of "sequels". The most famous is Mozart's The Marriage of Figaro, which follows The Barber of Seville. Gluck followed Iphegenia in Aulis with the Greek princess' adventures in Tauris.

Back for more: Giuseppe di Luca as Rigoletto.

Richard Strauss followed the events of the Trojan War with The Egyptian Helen. And Wagner, not satisfied with his libretto for Siegfried's Death wrote three prequels to it, which eventually became The Ring of the Nibelung.