Lion King II : I swear at the end of Lion King in KH II Simba pretty much hinted that Sora can come back at anytime and Sora said that he'll love to return.

Aladdin and the King of Thieves : They had Aladdin and Aladdin Return of Jafar so why not ?

Tron : Again like Aladdin they've had the Tron movies so with a new Tron coming out soon, the new Tron movie should become a new world as well and Sora has a huge connection with Tron.

The rest could be anything.