The original plan for the upper level (now the ) was for it to continue as a two-track line along the LIRR Atlantic Branch. It would have run through Locust Manor and Laurelton stations, with stops at Sutphin Boulevard, Parsons Boulevard (which was called Standard Place in planning documents), Linden Boulevard, Baisley Boulevard, and Springfield Boulevard. The line would have served a large-scale housing development at Rochdale Village; such a line would have required conversion involving modifying existing platforms at Locust Manor and Laurelton to accommodate the IND loading gauge, as well as constructing new stations to serve Southeast Queens. It would have also run parallel to the eastern Montauk Branch, which already provided parallel service through St. Albans to Jamaica. The lower level (now the ) would have been extended eastward toward Hollis (near the Hollis LIRR station). Due to a lack of funding as well as some political opposition, these plans were never implemented.