Potential highlights of the season will be a production of Lydia R. Diamond’s “Toni Stone” that will be directed by Diamond herself; the Pulitzer-winning “ Fat Ham ,” by James Ijames; and “The Band’s Visit,” winner of 10 Tony Awards, including best musical. The Huntington announced its 2023-2024 season Wednesday, a slate of six plays and a musical that will form the first full season with Loretta Greco as artistic director. The Huntington season will kick off with “Prayer for the French Republic,” a play about antisemitism by Joshua Harmon (”Bad Jews,” “Admissions”) that will be directed by Greco and...