Keeping in mind that I am educated as an aeronautical/mechanical engineer but I have not worked as an aeronautical engineer, this is what I deduce.
It looks to me like this is supposed to be a STOVL light bomber meant to be based from STOVL carriers like HMS Invincible or Kiev class ships, with a mission profile very similar to the F-117 but with at least some air-to air capability. Here is my reasoning.
As has been pointed out the landing gear looks like the aircraft is a tail dragger. If you look with concentration at the side view you can see from the position of the wheels that without vertical landing capability, to touch down on the main wheels first would require such a small sink rate that the aircraft would have a dangerously high landing speed. Also with that wheel configuration, to be able to safely make the takeoff rotation on the rear wheels you would need a high takeoff speed. To achieve takeoff without a long runway, it makes more sense to me that the aircraft would takeoff with the combination of thrust vectoring and a ski jump ramp found on STOVL carriers.
Now given that we know a STOVL aircraft can never carry aloft the same payload that a conventional aircraft with equivalent thrust can, it seems to me that the plane would rely on using a small number of precision strike munitions. That would seem to make this plane a tactical striker with limited strategic capabilities such as what the F-117 was designed to do, putting a bullet through the brain of an integrated air defense network. I say limited strategic capabilities because it would not have the payload or fuel capacity to have a long loiter time that would enable time sensitive attacks like how the B-1B has been used in Iraq.
Regarding the air-to-air capability, the large front nose does seem to be indicative of a powerful radar. From the top and front views it seems this is a lifting body design, and given the stubby wings I don't think the plane would be very manueverable even with thrust vectoring. So I guess that the plane is designed to deal with enemy aircraft BVR, but I do think it has some defensive capability. Given how broad the tail is, it looks like a rear-facing radar with a good search and track capability could be mounted. From the look of the weapons bay doors on the underside view I am guessing the plane is designed to mount at least one or two rear-firing missiles. The only thing about the design that causes me trouble with these conclusions is that with all that extra sensory data, you might think a second crewman is needed but only one seat can be seen in the side view. On the other hand you could make the case that the plane relies on advanced computer processing like the F-22 and F-35.
That is my theory, feel free to discuss and ridicule my ideas.