I'm thinking of it more this way: Let's say Uni wants Park 3 to be open by the summer of 2022. They would have to start building no later than sometime in 2018. But by then, they'd be building the DC replacement, the FFL replacement, the T2 replacement, and the Shrek replacement. If SNW was still in USF, that'd be three whole extra rides as well as a multi-level themed land on top of that. That'd simply be too much across different locations at one time. So adding SNW into the Park 3 plans could be their way of preventing themselves from spreading resources dry; it'd be a ton going on at once, but it'd be more comparable to back when Volcano Bay, Kong, Fallon, F&F, the CB towers, and Sapphires were being built at the same time.
Honestly, like I keep saying. I'm more than willing to wait if it means SNW will be the best version it could possibly be here in Florida.