This is what comes to my mind when I hear "Disney buys Marvel".
Aurora as Black Cat! Merryweather, Fauna and Flora as sidekick floating-spirit cats! :I
I've seen some cross-overs already, though mainly just the mickey clan, so I thought I'd give it as shot!
I picked Black Cat only because her hair reminded me of Aurora's 8)
I have a few more ideas for the other Disney Princesses in my head, though I'll see if I feel like drawing them out.
Aurora © Disney
Black Cat © Marve-....Disney?