I was searching the web for KH2 pictures and when i went to kh2.co.uk tey had an image under artwork that looked weird, it was sora in a white costume with yellow/gold with 2 keyblades, the kkingdom key and king mickeys key. Heres the link:
http://www.kh2.co.uk/image.php?view=kh2/artwork/kh2uc14.jpg
http://www.kh2.co.uk/image.php?view=kh2/artwork/kh2uc14.jpg