The only source is a tweet.*claps* HAHAHAHAHA. You want it written in stone, with a formal announcement, a trailer, and a release date set in stone.Here I am! :PI'm not believing this until there is more evidence.
Let's see how the naysayers try to explain that we're not getting them.
To be fair, more than one person confirmed the DQ creator said that at Japan Expo.
But still waiting on an actual announcement.