Well, the A51 members will not leak the videos!
I can tell you, that there is nothing much to see on the videos graphic wise. There are just flight model test videos with one have a raw cockpit.
Because I´m not a fighter pilot I can`t say how realistic the FM is, though it looks damn right.

If you really want to know more about the project you may join the fighterops forums.
And despite all negativ opinions, I think they have "something" and it is NOT vaporware.

New information about the project are very rare on the A51 section to. So there is not much to discuss, only to speculate...