It would be interesting to see the lesser remembered or less liked Disney movies get a Kingdom Hearts world but it's clear Disney corporate will never go through with such an idea, and also lets be honest I'm sure both Disney and KH fans wouldn't want worlds based on the less liked Disney films such as Chicken Little anyway. I'm pretty damn sure the only reason for the Chicken Little summon in KH2 was the result of a cross promotion corporate mandate because KH2 and Chicken Little both released around the same time and Disney figured it was an easy way to promote the movie without delaying the game. Had KH2 come out a year later or so I wonder if Disney would have instead asked them to scrap the Chicken Little summon for something relating to Meet the Robinsons instead as Chicken Little was poorly received but Meet the Robinsons was still unproven (though lucky for Disney that movie actually was well liked).

Ah,yes, the AU where the KH concepts are used with the crossover characters rather than the OCs.