Just noticed that now. The slope near the canards also appears to be much more angled than on the regular KE.has canards, so yeah most likely a bigger 2xengine KE
There's also a Sukhoi'esque shape to it. Judging by the size of the front bit, it's probably several meters longer than the regular KE.
My guess is that this is a more devolved version of KE. On top of supersonic speeds, it may also have aerial refueling capabilities. I hope it also has a larger nose in order to accommodate a huge radar.