I had this sudden realization that I still have not finished this one too.! T_T
Production on "Another Epilogue" for the Angel Beats! television anime series has been green-lit. The "one more ending that no one knows" will serve as an alternate last segment for the final episode of the anime, which aired on June 25. The epilogue will be included in the final home video volume for the anime.
The Neowing retail website had revealed in June that the seventh and final Blu-ray Disc/DVD volume will ship with the 13th television episode ("Graduation") and unaired special footage on December 22.