Well I can tell you that there's no way that a dark ride, which hasn't been announced by USH yet, can be built and opened in 2016 at this rate considering the state of the stage 28 plot.
Also, I highly doubt Murdy's attraction is huge (and a ride) and will be in the HoH replacement.
I'm willing to make bets about this TWD thing. Even Robert Niles shrugged about the ride's possible location... if it was Universal he wouldn't be as genuinely uncertain.
I think Sally is shopping this thing for random locations, whoever wants to buy it. Hell, this could be them competing with Triotech for Cedar Fair's heart. Sure, they can take their Boo Blasters ride and make a fun (but dumb) Triotech, OR they can let Sally redo their own ride (less R&D costs) with a killer franchise attached.