I know this was touched on awhile ago, but there are more articles referencing a larger three row variant of the Blazer may be in development. GM Authority claims this seven seater will first launch in China early next year, arriving slightly later in NA. It will be 5.5 inches longer than the two row model and the its wheelbase will be increased slightly by 0.2 inches. It will still use the same platform as the Arcadia and XT5. https://www.autoblog.com/2019/02/25/three-row-chevrolet-blazer-xl/