Indeed.
I had immediately googled to see if it was a copy of an existing design. It was not. The closest to it was the X-35. I could not believe my eyes.
Talking of only the design elements observable in what has been disclosed by PAF (because some details are yet hidden), the canted twin-tails are perhaps the most challenging part. The join will be very difficult. This would perhaps require Titanium & I wondered if that is something Pakistan could manage doing? It also raised a couple of questions in my mind - one of them being if Pakistan is seriously working on this. I mean just look at that join, which would undergo very high stresses. Also, the behavior of the twin canted tails in the turbulent/vortex flow was an immediate question mark. I have nearly zero study of aerodynamics, but I could see that this would also be a challenge to design around.
In case somebody has noticed, I am a bit dismissive of this design. The above are some of my concerns that lead me to be skeptical.