Lost on this Monster

Pretty sure that's a fake. There's nothing on Bandai's site, or their twitter about those stills people keep showing. Unless it was only posted on their facebook which I don't have so I can't check I'm gonna say there's a huge chance those images are fake.

Don't worry about it, it was a monster used in a proof of concept trailer for San Diego Comic Con in 2012.  It didn't have a name, and it won't be featured in the movie.  And that picture is fake, I know the person on DeviantArt who drew the original.  If "Coming to toy store near you" doesn't tell you it's fake, I don't know what will.

It's a fake. :)