I get the feeling, Universal Creative was dealing with a heavily mixed bag of a lot of things.
The first, was the increasingly negative stances of screen-based attractions. I get the feeling that with Fallon and the impending Supercharged; Universal needed to look back at what they needed to do moving forward.
The other, is the southern land, as it was always a "will they, won't they" for a while. I imagine that it was a situation to where, they needed to figure out the best plans going forward that can be done without hesitation, for if they could've gotten that land.
And the final, is D23. To be blunt, that seemed like a wake-up moment for Universal Creative; and it was where they were them seemingly exasperated with possible projects that could've been developed. And that, it seemed to of impacted not just Orlando, but Osaka (see the 5-6 month period of pause on the site) and Hollywood (when you consider how LA was in the bidding for the 2024 Summer Olympics) seemed to have things occur.
But as it is now, Hollywood; Osaka; and Orlando all have their crap together, and they are moving forward.
Kidzone seems like it has "something" back into play (and they have had alternatives before the Nintendo deal was locked), and I wouldn't discount the Jurassic re-theme just yet. But hey, that's just how I'm seeing those two right now.