This isn’t so much “upcoming” as happening because the “Lost in Transition: South Brooklyn, Williamsburg & Coney Island” opened on Thursday at the Brooklyn Historical Society. The cool exhibition of photos taken by high school students as part of the Urban Memory Project documents change in Brooklyn neighborhoods. We caught the Coney Island photos in Park Slope last year. The Brooklyn Historical Society exhibition runs through April 27. It is located at 128 Pierrepont Street in Brooklyn Heights.