He said the "large-car segment has not been a growth segment," adding that the Azera is "something that we can live without."
The Cadenza and Azera are sister vehicles built on the same platform.
"Cadenza is here to stay," wrote Kia Motors America spokesman Scott McKee in response to a query from Edmunds. "In fact, we'll be showing an all-new version in the near future."
Launch timing, pricing and other details were not provided.
The 2016 Cadenza is on sale now at Kia dealerships.
Edmunds says: Car shoppers can look forward to a new-and-improved Cadenza, which will remain in Kia's U.S. lineup.