Today's Dragon Quest X press conference starts in about thirty minutes. But we still don't know what's going to be announced.
The popular expectation is that Square Enix will be formally showing Dragon Quest X for the first time. According to Sankei Biz, this is indeed the case. The site's schedule lists today's press conference as "Square Enix Holdings Announces Dragon Quest X."
The press conference will kick off at 14:00. For details on how to watch a live stream, and a live blog of the proceedings, view this story.