Ric Flair is set to appear tonight on Raw at the Barclays Center. Flair has been in New York City during SummerSlam weekend and has been written into the show.
WWE has also announced that Brock Lesnar is appearing on the show. Sting is also said to be appearing, as he flew back into New York after doing Wizard World Comic-Con in Chicago, but that is not yet fully confirmed.