No telling what's in store for KD, but I would bet a dive coaster like Yukon Striker would come to Carowinds in the middle of the park like that, replacing Nighthawk (and maybe Vortex?).They built a new underwater tunnel for Yukon Striker. Hopefully KD can get creative with the landscaping too. Anaconda's tunnel is virtually useless but I think it's within budget to start from scratch if they wanted to utilize the lake in another way.
With Corporate selling off land around the park, maybe it's not a bad thing to have a big space for redevelopment? My guess for KD would be another round of Planet Snoopy improvements - maybe turning part of it into Camp Snoopy and putting in something like the newer coasters KI/CW/Knotts just got?