https://nypost.com/2022/05/16/downto...thletic-brand/
This is the vacant lot to the west of the former Duane Reade building. It doesn’t seem that building is part of this development, though.
The tower part of this development (on Flatbush between DeKalb and Fulton) has had a lot activity in the last week. Excavation seems to be under way.