"I'm working on an adaptation of a big, sort of famous German-language play, but I can't say which one. And it may be for a big star, but I can't say whom. It's for Broadway, and I recently finished the first draft," Kushner told OUT.

"I also just finished the second draft of the new movie that I'm working on for Spielberg. It's based on this work of history, 'The Kidnapping of Edgardo Mortara,' by David Kertzer, about the kidnapping of a Jewish child by the Vatican in 1858 in Bologna, Italy," he added. "Then I'm working on an HBO series — which I can't say anything about except that it's an original idea and it's contemporary — and I'm developing a new musical with Jeanine Tesori about the death of Eugene O'Neill."

An Academy Award nominee for the screenplays of "Munich" and "Lincoln," Kushner won the Pulitzer Prize for Drama in 1993 for Angels in America. He was also Tony-nominated for the book and score of Caroline, Or Change, and his play The Intelligent Homosexual's Guide to Capitalism and Socialism With a Key to the Scripture was seen in an Off-Broadway engagement at The Public Theater.

Tesori composed four Tony-nominated scores for Broadway — Thoroughly Modern Millie; Twelfth Night at Lincoln Center; Shrek the Musical; and Caroline, or Change, which received the Olivier Award for Best New Musical at the National Theatre in London. Her musical Violet opened at the Roundabout Theater, starring Sutton Foster, and garnered four Tony Nominations including Best Musical Revival. Her most recent musical, Fun Home made its premiere at the Public Theater to critical acclaim (winner of Lortel, Outer Critics, NY Drama Critics, and Obie Awards) and is slated to open on Broadway in April 2015.