The X-six seems to be nothing more than some Photoshop doodling - a bit like this "Apple Drone"
http://mashable.com/2015/03/23/apple-drone-quadcopter-concept/?utm_cid=mash-com-fb-main-link
The X-six rumour/hoax originated here in early February
http://dronereg.co.uk/could-this-be-the-new-phantom-xsix-from-dji/
.. but nothing more about it has surfaced anywhere.
Hard to imagine if there was any substance to it.
If anything is coming soon, April 11-16 (NAB show in Las Vegas) would be the time it's going to happen.
MaxAero have said mid-April for their X-star and I'm guessing that's where they'll do it.
Could be some other interesting new products from other makers too.