While DC didn't provide further details on the larger format, the Black Label imprint title is
"Superman: Year One is a coming-of-age story for the future Man of Steel, featuring a young alien-boy just trying to find his place in a new world," reads DC's description of the title. "Faced with the need to hide his heritage and powers in order to survive, Clark will find his humanity through the grounding of the Kent family and the relationships that will define the man he will become."
Superman: Year One was originally scheduled to debut in August 2018 and was later pushed back to November 2018. The first issue is now scheduled to debut June 19, 2019.