She hasn't even clarified if that's her speculation or what she's been told.
Has she ever been proven correct on any of her leaked info? Is she a credible source for this stuff?
I've read mixed things about this woman - I don't know who she is.
Seems she's either wrong a lot or wrong just as much as she is right? What's the deal with that?
It's easy to change the planned reveal date when they think its strategically smart to do so.
She called the NX port of Zelda, voice acting for Zelda, Miiverse on the 3DS, Paper Mario on the Wii U, & a few other things. She was also in on the Eurogamer report for the NX.Has she been right about... anything recently?
Yes, she has, and yes, she is. Regardless, many (all?) of her NX leaks sync up with Eurogamer, LPVG and WSJ leaks regarding NX, so if you doubt her, you should at least trust WSJ.