So the hype has built around this newly announced secret movie included in re:coded, but what could it actually be? Some YouTube videos have suggested that it could include either the contents of KH BBS vol. 2, KH3, an HD remaster of Dream Drop Distance, or the localization of KH chi.
First things first, it's likely not going to be a secret movie about KH chi. Why would a Japanese game include a trailer of KH chi when it's already released in Japan.
In recent interviews, Tetsuya Nomura has stated that Kingdom Hearts Dream Drop Distance will be most likely to NOT get an HD remaster, but if there was, it'd be a downloadable game. My opinion is, there is going to be some sort of connection between the unexplained content of Birth By Sleep and lead into a short snippet of Kingdom Hearts 3 at the end of the secret trailer.
I am typing this on my phone so I'm trying to keep this short and sweet. If I forgot anything, feel free to criticize in the comments. Also, this is my first post on the KH13 website, so your criticism will help me improve my posts in the future.