The official
YouTube page for TV Tokyo has posted a trailer for
Mewtwo: The Prologue to Its Awakening (ミュウツー ~覚醒への序章~), an OVA that will be airing as part of the
2-hour special on July 11th, 2013. For more information about the OVA,
click here to read the summary.
Mewtwo: The Prologue to Its Awakening Trailer
Source:
http://www.youtube.com/watch?v=1s4BiuTSHD0