Exhuming this thread for good measure.
So yeah, DreamWorks has at this point more or less been confirmed to be taking over KidZone. Note the very green coaster at the right of this image.
Details are very scarce but DreamWorks animation has in recent times filed a series of trademarks that are almost certainly connected to the area;
TROLLERCOASTER is no doubt going to be a reskinned Woody Woodpecker’s Nuthouse Coaster, which as of now is being painted with primer;
Source
Elsewhere work on the land has progressed past the demolition of KidZone with actual new structures going in - this perhaps be Shrek’s house (what are you doing in my swamp?);
Source
While it’s not known what else will emerge in terms of new attractions, WhiteWater West
is also involved. Outside of waterslides they’ve been known for supplying some pretty huge adventure playgrounds, so I would expect something along the lines of this.