(Fake) Kung Fu Panda 3 movie trailer

What if the third movie in the Kung Fu Panda series had Po versus the nation of Japan?
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Music and vocals were taken from a Tera Online trailer.
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Would this work? Never in a million years, but I saw a trailer for game called Eligium the Chosen One which had a badass CGI Panda warrior in it and one of the trailers for Tera sound to me like the voice of Tigress, so I couldn't resist.
How might this imagined scenario go? While going on a pilgrimage the Furious Five accidentally lands on Japan to discover the island is inhabited not by animals but by human beings. Although the country itself is merely fascinated, even reverent to them a vicious warlord and his army decide to invade the lands beyond to claim them. Kung Fu meets other eastern styles never known and ancient tradition runs full tilt into more modern technology in a pitched war for the fate of both worlds.