Hmmm, turns out that any new CC developments are still a ways off.
I recently stumbled upon a site with concept art for Celebration City's redevelopment. My first thought was that this was some kind of inadvertent leak on the part of the design company involved, and I immediately contacted the park for confirmation and to let them know in case it needed to be pulled off the web before we started talking about it openly. I'm glad I did, because it turns out we shouldn't be getting our hopes up just yet.
As it turns out, the concept art was simply one of a number of pitches made by design firms for the CC property following the park's closure in 2008. Pitches and concepts are still being developed to this day, but we likely won't see any noticeable progress towards re-opening the property for some time. There's still no real information to be had about where they're at in the process, and numerous factors are still at play and changing all the time, I'm sure.
The concept art is here:
http://www.vertexproductions.com/celebrationcity.php?menu=2 - but keep in mind that this is simply somebody's pitch for the park's redevelopment, and not necessarily what HFEC is planning to do in any way.
I've gotta say though, I like their ideas. I didn't quite get the whole explorer's club idea, but I assume that was part of the 'resort' they threw in with the plans. Other than that it's just a couple of new rides that wind through animal exhibits, which would be fun. I really think adding animal attractions would diversify the property enough that it could stand it's own pretty well - but I'm sure there would still be some cannibalization of HFEC's other properties, and with gas prices and the economy still at play they probably aren't looking at doing anything as big as this anytime soon.