I popped over to yimby to see if anything new was going on, and this jumped out: http://newyorkyimby.com/2016/01/three-three-story-two-unit-residential-buildings-coming-to-696-east-38th-street-east-flatbush.html
Here's a link to map of the location: https://www.google.com/maps/place/696+E+38th+St,+Brooklyn,+NY+11210/@40.638383,-73.9416046,16z/data=!4m2!3m1!1s0x89c25b572039d9bd:0xf70703cec5c657d4
That development seems to be one of the furthest out and furthest from a subway (that I've seen in that direction). Additionally when walking that neighb the other day I noticed that a few sites that just had the green construction fences up now had backhoes and pictures of plans on the construction fences. Most of them indicated completions in winter 2017... hear that? You've got until winter 2017 to beat the developers.