I imagine they will eventually make their way to the platform, but titles will sadly come and go. I wish it was a complete archive, but I guess Disney feels it can't make enough money that way?
It's funny you mention ALL THREE of those titles. I may have purchased them for myself with the buy two, get one free Target promo a few weeks back. I took a gamble Ralph would be the special BB animated Disney film and I am happy I was correct
I didn't see TS4, but I think Aladdin and Lion King are $16.99 each at BB in the circular. Target will also have that spend $50 on BF, get a 20% coupon for a future shopping trip. You could always pick them up then!