It's far from a secret that the shot tower is coming to SDC, and the only other rides left at CC are the flying carpet and Roaring Falls. I'm going to guess they sold RF. Alabama Adventures is a likely bet to buy it, they had a brand new supersplash-like attraction for 1 season, but I believe they sold it during the ride sell-off, and now Dan Koch is rebuilding the rides park again.
We haven't talked much about Celebration City in awhile. It looks like things only continue to trend downwards for the likelihood of them rebuilding it into anything substantial. Branson tourism still seems to be a rapidly changing beast these days, with small attractions and theaters opening and closing all the time. I want to believe that adding another marquee attraction to the mix would help 'raise the tide' a bit, but I sure wouldn't bet my money on it.