This gorgeous glass & wood preschool by Christoff : Finio is proposed for the corner of Driggs Ave & Fillmore Place, the only landmarked block in Williamsburg.
Fortunately, the scale and design are nice, and the site is a crappy vacant lot right now [GSV, above], so chances for their application with the Landmarks Board are probably good.
They're certainly better than your chances of getting your kid into the Reggio Emilia preschool when it eventually opens in Fall 2016; there are just three classrooms, one per floor, and a rooftop play area. Get those applications ready!
The Architects' Newspaper has more info and many more sexy renderings.