I figured it's time enough to finally make a thread for this. Probably was long ago.
Anyway, for those that haven't been following along,
@Marni1971 has hinted that they are back to where we all thought they would be for this - Mary Poppins. Most recent rumor is that there is 2 to 3 ride systems they are choosing from.
According to Martin himself, the Brave attraction when it was still on was supposed to be a busbar type classic dark ride. So don't expect anything amazing, but not everything needs to be. Some smaller, quaint rides are good for rounding out every park.