There will be no revisionist happy ending in the coming Broadway production of “The Gershwins’ Porgy and Bess.” A new scene, in which the title characters have a final emotional encounter meant to deepen their love story, has been dropped. But some hard feelings remain, at least on the part of the show’s director and its lead producer.

It has been three months since Stephen Sondheim shocked the theater world with a rare public rebuke of fellow artists — the creative team of this “Porgy and Bess” — for changes to the landmark 1935 opera that they were rehearsing. The director, Diane Paulus, and the producer, Jeffrey Richards, largely stayed silent. And in their first joint interview since the scolding, they insisted — in between expressions of frustration — that they had moved on from L’Affaire Sondheim.

“Are we not saying his name?” Ms. Paulus said of Mr. Sondheim over coffee at a Broadway neighborhood restaurant last Friday.

“It can be said,” Mr. Richards replied, without ever going on to say it.

Ms. Paulus, best known for directing the 2009 hit revival of “Hair” (which Mr. Richards produced), forcefully repeated during the interview that the estates of George and Ira Gershwin and DuBose and Dorothy Heyward had asked her team to change the opera to fit commercial Broadway. The production, which had a tryout run at the American Repertory Theater in Cambridge, Mass., in late summer, is set to start preview performances on Dec. 17 at the Richard Rodgers Theater.