Some things REALLY need to be left alone. This screams cancelled....Don't worry its only on Youtube and its a 10 series event. No official release date other than THIS YEAR.
How youtube describes it:
"Original stars Ralph Macchio and William Zabka are back as karate rivals Daniel LaRusso and Johnny Lawrence, and as the teaser above shows, they’re still nursing wounds from the old days. Johnny is reviving his old dojo Cobra Kai, and Daniel isn’t about to let him without a fight."