User blog comment:Lemursrule/BLEACH 311 Review: Lord of the Hollows: Return of the Kon ( well sort-of)/@comment-1393830-20110302041807/@comment-1468352-20110302072459

I don't see them starting a new season with the current opening and closing themes. Song For was first used in 304 and it'll probably be used for 10 episodes like Tadibatsu Kimi e that was used for the Toju arc - the shortest span a closing theme was used in Bleach. According to this, it's 314 or bust for the start of the new filler.