User blog comment:HollowKing17/Vacant Captain and Lieutenant positions/@comment-4207271-20130609211828

I posten a similar blog a few months ago, and the general consensus seemed to be that a new character (From one of the Noble Houses) would be introduced for one slot, Lisa as 8th Lieutenant and Love for 8th Captain. Isshin would be a good fit, but because of Karin and Yuzu, he would decline. Also, it has been stated that Urahara and Tessai will never be art of the Gotei 13 again, so it is unlikely Kubo will negate that, as he has done that too many times recently (Zangetsu, Byakuya). Love seems to be the only certainty here.