I'd be somewhat surprised if SDC follows DW's Wing-Walker anytime soon. Unless DW's version ends up being truly unique and fun, I think the Wing-Walker fad will peter out to some degree by the time SDC considers another B&M. I'm hoping they go with the tried and true inverted model instead, with a layout as intense as the new one they're building at Parc Asterix, but with PK being so much more popular than Wildfire, you'd expect they would have tried to follow that up by now instead. Then again, those big B&M's are great for publicity.
I'm betting a woodie is in store for 2013 though. The time has never been more right for it.