First of all, did you know that Donkey Konga 1,2,3 are all Japanese made and feature playable Dixie and Funky? Also DK: King of Swing, DK: Jungle Climber and DK: Barrel Blast were all Japanese developed games. So saying the Japanese only use DK and Diddy is a completely false statement.
Second, from what I read, the Donkey Kong series is actually more popular than Zelda in Japan. This mostly has to do with the CG tv show which was insanely popular over there for some reason. I don't know where you're getting that Donkey Kong isn't popular over there.
Third, we already have Kritters running around in Smash Run. What's to stop him from putting more DK stuff?
Finally, Dixie Kong was actually considered for Brawl, and her name was found in the coding.
Second, from what I read, the Donkey Kong series is actually more popular than Zelda in Japan. This mostly has to do with the CG tv show which was insanely popular over there for some reason. I don't know where you're getting that Donkey Kong isn't popular over there.
Third, we already have Kritters running around in Smash Run. What's to stop him from putting more DK stuff?
Finally, Dixie Kong was actually considered for Brawl, and her name was found in the coding.