I'm gonna go against the grain here and say this: considering Disney's recent work (Frozen, Once Upon a Time), I'd prefer to see Disney take a shot at... REMAKES.
The original Snow White and Cinderella are... well, not very good. They have a certain classical appeal, but are otherwise pretty crappy.
For example - in the 1800s, there were two versions of the Cinderella story. One is the super religious version which ended up inspiring the Disney film (with a Fairy Godmother replacing God/the ghost of her dead mother). The other involves Cinderella attempting to reclaim her stolen kingdom (that is, she wasn't a peasant girl - she was dethroned royalty). She wanted an alliance with the Prince rather than love/marriage. Also, she's quite skilled with a sword and fights Trolls.
I want to see Disney makes THAT version of Cinderella.
They could even retitle it if they don't want to conflict with their previous film. And add another Princess to their lineup at the same time.
As for Snow White... well, it would be kinda hard to beat the one from Once Upon a Time.
....
Oh, and keeping Once Upon a Time in mind... no one has mentioned "Little Red Riding Hood" so far.