Why is this necessary!?!?!?
It has some interesting mix of actors, consisting on either Jackie Chan or Stephen Chow, Will Smith and his son, being directed by Han Sanping (i really don't know anything that this guy has directed).
link: http://twitchfilm.net/site/view/jackie-chan-and-will-smith-teaming-for-a-karate-kid-remake/
I'm sorry, but a fifth sequel!? Ugh, kill it already...