http://www.ripcony.com/sites/default/files/5059__PropertyFlyer_GatewayCenter@Brooklyn_0.pdf
http://web.mta.info/mta/news/books/pdf/140519_1030_transit-bus.pdf
the board materials in section 6 (page 131-138) cover an expansion of the 
and the Q8 effective in august regarding the reroute of these buses to cover the new expansion of the gateway mall, the island will be able to hold 6 buses.
the b84 will NOT be routed there because it would be too costly and does not cater to it's base figured i'd share this with you.