Tangled was a little underwhelming when it was announced. Yes, it was an okay movie, but nothing that would totally get the fans excited. Now everyone has something that they can lick their comps over. Big Hero 6 is coming to Kingdom hearts in a unique way.
**Spoilers**
During the conference and the announcement trailer they talked about some of the similarities that both the movie and Kingdom Hearts have. There was even a hint that was dropped (and can be seen in this pic) that Baymax and Sora are fighting, well, another Baymax. How is this possible? At the end of the movie Baymax launched Hero back through the transportation device and Baymax was lost. This Baymax is rumored to be taken by the darkness and reanimated to destroy the key-bearer.
They also mentioned (at D23) that every keyblade will have its own unique finishing ability. They seem to be going all out on this one!