Some plays and playwrights are done again and again in perpituity. But everything is cyclical, and some reemerge with the changing of generations.
The Spanish playwright Pedro Calderon de la Barca wrote many plays and his influence was very strong over European dramatists. Although Lope de Vega may pop up in a rep season now and then, Calderon is a scarcity.
Brandeis Theatre Company, now in their second year will be doing The Physician of His Honor this season. It will be worth a look.
Project Gutenberg has the online text of a few Calderon plays.