Cronkite died July 17. He was 92. His funeral was July 24 in New York.
The New York Post said the luminaries are scheduled to speak at the Sept. 9 event at Manhattan's Lincoln Center.
Also reportedly on the guest list are television personality Nick Clooney, CBS executives and newspeople Les Moonves, Sean McManus and Bob Schieffer, veteran broadcast journalist Tom Brokaw and media mogul Howard Stringer.
The Post said Wynton Marsalis, Michael Feinstein, Jimmy Buffett and Mickey Hart, as well as the U.S. Marine Corps band, are lined up to perform.