If I were the park and doing a nostalgia-based attraction based on the options here, I'd do a B&M surf coaster named King Cobra.
I don't say this to shoot down this topic, but if I'm being honest, I'd much rather the park definitively draw the nostalgia era to a close with a return of Phantom Theater and then start focusing more on creating new legends. Nostalgia was a cool focus for the 50th, and bringing back The Bat name, adding Kings Mills Antique Autos, and making the refurbishments of Adventure Express and Racer among the marketed additions of their respective years were inspired touches. I also think that if we continue much more down that path, the park risks another era down the road where, much like post-Paramount, the park will have failed to keep up with the industry and we'll be getting an RMC 10 years after the stateside trend has faded, as was the case with B&M inverts and Banshee.
Every legendary KI ride was some new idea the park hadn't seen before. Let's do more of that.