The Brooklyn Daily Eagle article "Goodbye B75, B77; Hello Longer B57, B61" details the changes that will affect the B67, B69, and other bus lines:
"the B67 route between Downtown and Kensington will continue to operate on weekdays but on a reduced schedule, alternating trips with a rerouted B69 along Seventh Avenue in Park Slope, 19th and 20th streets and McDonald Avenue, to a turnaround point for both routes at Cortelyou Road."On page 7 of the Transit Service's report (page V of the document) is a summary and index for all local Brooklyn buses. A fuller description starts on page 57 (page 47 of the document).