So with regards to this, Samuels just filed an NPC for the point increasing its height from 270 to 340 (not including mechanicals), which I believe is in accordance with the maximum height allowed under the proposed PDA amendment. The NPC also includes the additions of a few units and a reductions in overall retail.
Anyway, here it is:
http://www.bostonredevelopmentauthority.org/getattachment/7fdc9ff4-eab0-440a-9f5f-ee1b66625cbc