pureview is confirmed to be coming at mwc, nokia themselves leaked it

http://mynokiablog.com/2013/02/12/nokia-russia-speculates-about-mwc-13-talks-wp-and-41mp-pureview-shows-first-pureview-prototype-eos/http://mynokiablog.com/2013/02/12/nokia-russia-removes-video-talking-about-pureview-windows-phone-and-pureview-proto/

So yep, pretty much confirmed