I have read the some about this fighter and i have watched the video before also. Interesting because Japan is building its own fighter after a long time. Its shape is quite similar to the f-22.
Pakistan must increase his relationship with Japan asap because Japan is the only country atleast who make most ADVANCE aircraft in very shorttime because thy have most advance technology in everything .....
We Pakistan has no problem in extending relations with Japanese Govt, but we've problem with americans fingering everywhere Pakistan goes...
look at the F-2 project a waste by now i don't see any difference between blk 60 F-16 and F-2A/B except that Mitsubishi is given all the rights to develop this Jet yet the engine is American...It was a hot political issue in 80s 90s and americans pocket alot of cash with this project to me i call it a failure had Japanese started Stealth projects by 80s i guess they would have something up in their air by now with out depending on US..
Japanese have yet to replace f4s around 110-118 in their inventory...
I believe F-15s and F-2 will be around for next decade or a little over..
Their biggest mistake completely depending on American hardware..now they realize but i would say a bit late..
from awacs to next gen fighters to transports had they invested minimal in indigenous development like in WWII.