So let's run this down:
KOS MOS mod gets copyright struck by Nintendo, video taken down
Copyright strike is ACTUALLY from Nintendo
Copyright strike is cited as being both:
Visual
and
"Mario Kart Tour"
As much as I want KOS MOS to be revealed tomorrow, SOMETHING feels odd here. The timing seems not an issue since we're soo close to the Game Awards, so copyright strikes going out is logical.
...but why on Earth Mario Kart Tour? If you can copyright strike via games, then CLEARLY they'd have been able to pick Super Smash Bros Ultimate.
And not only that, but visual? The Copyright bot just realized "This is KOS MOS, in Smash."
That would have to mean that the model was INCREDIBLY close to what we'd be getting to fool the copyright bot, which, is actually better at its job than you think, seeing as it's completely ignored the Mii Hat leak, yet it went after the ESRB leak in Smash 4.
Something is VERY odd here.