Here's a fun fact about KH2's promotion.
At the time KH2 was about to come out, I actually had the oppurtunity to do the "Disney Internship" at Disney World. For their interior system, they usually would have all their disney related stuff and when it came time for KH2 to come out, they actually had a piece about it showed th promotion with one of the magazines at the time (slips my mind which one it was) for all the alternate outfits for Sora, Donald and Goofy. I would imagine that right now, there is likely something in their systems right now that is promoting the heck out of KH3.
Either way, it is great to see that Disney wants to see KH3 flourish and so far, the game has been a blast. Only got to play for 3 hours but I'll be making my way to Buzz and Woody soon.