User blog comment:Sosuke Aizen008/Maybe Starrk or Szayel or Nnoitra./@comment-11003280-20130809101858/@comment-5028409-20130809183156

The one after the Ichigo's battle with Aizen. They stated that Yammy died in Hueco Mundo, Starrk died as well. Ulquiorra's original hollow form was shown as well as Nnoitra's. The only remaining Espada are Harribel and Grimmjow.

If I remember correctly it was the UNMASKED one or so.