Hmm. Looked at Georesonance's images and based on the scale that plane looks like it's almost twice the size of a T7.
If these images are of anything real, I'd bet these could turn out to be images from an entirely different site and plane: the prototype for the experimental Ekranoplan (aka Caspian Sea Monster) which lies at the bottom of the Caspian sea.
Any other bets?