Sig is discontinuing both the 716 SBR (part number R716-12B-CQB-SBR) and the 716 pistol with brace (part number P716-12B-PSB).
I noticed that they were removed from the 2016 dealer price list and sent an email to an acquaintance at Sig. He confirmed both are being discontinued with no replacement currently available. I thought perhaps they were revising them to a Gen 2 (updated rail / gas block) or something along those lines but that is not the case. Both are being dropped from the line.