Future Diary finally concludes with the True Ending OVA, Future Diary: Redial–available now in the brand new Future Diary Blu-ray/DVD complete series combo pack from Funimation on November 21, 2017.
After the events of the Future Diary anime series, an amnesiac Yuno Gasai leads a normal life, but some phantom of the past still exists.
Future Diary - OVA Official Clip - Phantom of the Past