^^ I'll take a stab at it.
I see Oz Wildcat, the ferris wheel, bumper cars, mini-golf, go-karts, RF, and the S&S (It's a small space) staying without any issues.
I think the scrambler, flying circus, the carousel, The Stinger, and Thunderbolt will probably stay.
Things I could see just about everything else leaving.
Obviously, the Celebration Theater will probably stay. The boardwalk will probably retain the atmosphere. The laser theater will probably become some sort of attraction, maybe the aquarium? I'm not familiar with the HFE aquariums, so I don't know.
I find it funny that they're willing to spend millions to reinvent a park they failed to poor investment in. If they would've taken the money they plan to spend redeveloping the land and used it to make the park better, CC would have been awesome. They can blame the theme if they want, but I say it was a lack of investment. Now they're going to spend TONS of money to redevelope a site that I believe didn't really need to be redevloped, just invested in.