User blog comment:Jkphantom9/New Japanese Dub RWBY Trailer at Comiket 88!! UPDATE: More Japanese Cast Announcements!!/@comment-11188061-20150815043414

The VA is quite impressive. Funny though that the fanmade Japanese Trailer is far better than this. It had coherence, a storyline, epic sequence paired perfectly with the music and so on. This official Japanese Trailer on the other hand spoilers almost every epic fight scenes imaginable.