Taking this strictly at face value and acknowledging the problems mentioned above....
The second and third images offer more detail, including what appear to be deployed control surfaces on top of the object. That would indicate aerodynamic characteristics because a control surface acts to 'push the air' in a way that affects flight, e.g. Flaps change the shape of the wing to slow you down. Also, the pics shot at an angle appear to show a body that has more shape to it than just a flat triangle, also indicating some aerodynamic possibilities in the fuselage/wing combination.
The reason this is important is because it indicates a power source that may be dependent on lift and thrust. The shape of a wing creates lift through forcing the air to travel further over the top of the wing than the bottom. The craft is 'sucked up' by the vacuum thus created, but in all cases this requires movement through the air, or, more correctly, over the wing (so kites will fly because of wind, not thrust.) However, with a shape like this there is no way the sucker would fly without computers, as we know from the stealth aircraft we do know about. Generally speaking, stubby wings need to be compensated with more thrust and power.
With an anti-gravity power source, all this goes away because you are not dependent on aerodynamics to lift the craft. You still need stability, of course, and who knows how that is handled if, indeed, such power sources exist?
So...this looks like a conventionally powered craft or at least one that uses conventional aerodynamics as part of its composition. Note: I'm not an aeronautical engineer, but I am a licensed pilot.
The images take a long time to come up. In the first page they never came up for me at all. I had to click on the blank image to bring up the larger 1600 pixel image, then zoom in on that.