How so? It's unlike ZUN to release ANYTHING before the date, and for that matter, a source was confirmed on Pooshlmer on this; the guy does a lot of fake screenshots, and he's damn good at it. Still not fond of Yawata's design at all, but if this is real, and her theme proves good enough, then I may end up liking her. The jewel case just doesn't seem like something that would be for UFO (I imagined something more... sky-ish, since that seems to have been a fixation for the first three levels)
Yeah, I was gonna say it does kind of look like it could be legit. Unless you work for the FBI spotting fake checks and cash, then no one cares if you think it's fake. We'll find out after comiket anyway so it doesn't matter.