The Benchmark International Arena in Tampa, Florida is advertising John Cena for Backlash on Saturday, May 9.
Below is a screenshot from the Arena’s website promoting the event.

Back on April 23, Cena posted to X that he’s still going to try to do something epic in Tampa on 5/9, promising Club WWE something special and to stay tuned.

Cena previously hosted WrestleMania 42 Night One and Night Two last month.
Backlash airs live on ESPN Unlimited in the United States and Netflix for international fans. The first hour of the show will air free on ESPN 2 in the United States. The event starts at 6:00 pm ET/3:00 pm PT.
Below is the current lineup for the show.
-WWE World Heavyweight Championship Match: Roman Reigns defends against vs. Jacob Fatu
-WWE United States Championship Match: Trick Williams defends against Sami Zayn
-Danhausen and Mystery Partner vs. The Miz and Kit Wilson
-Seth Rollins vs. Bron Breakker
-IYO SKY vs. Asuka