Board Thread:Spoilers!/@comment-25551215-20160315233708/@comment-32390199-20160524174554

Talking about hearts, it's interesting Once never touched upon Hearts of Light which is used in Kingdom Hearts (and seeing as Disney co-owns KH they could use the concept).

In Kingdom Hearts there are Seven Princesses of Light who have a heart made out of pure light (making it impossible for them to transform into Heartless). These princess however are: Snow White, Cinderella, Aurora, Alice, Jasmine, Belle and Kairi... with all of them having already appeared... the concept is interesting to re-use though.