Would I like to see them put that level of concentrated work into the park? Absolutely. Do I plausibly see it happening any time in the near future? No. I think we would have started to hear something in the way of rumors if there was really work of that magnitude coming.
At this point, I'm pretty disheartened about USF. As we're about to watch Epic get (seemingly) a couple of significant expansions, and as IOA gets rolling on a new land redevelopment, the only thing on the horizon beyond the F&F coaster (almost certainly going to be an improvement on what was there for coaster fans, but still a like-for-like swap) is the Supercharged replacement... and I think most of us are probably putting our money on that being just an overlay instead of a completely new attraction concept.
I'd love to believe they're going to gear up to make USF's 40th something special, but I just don't see it.