I won't make any pretenses of having inside information, but those maybe rumors, maybe wishful thoughts do sound like things the park needs. Then again, I'd be worried that any new park entrance will be less themed than the current one, as will any replacement for Antarctica. The flying theater sounds good though, and I know it's been talked about as a possible Wild Arctic replacement on forums and blogs for several years now. If Kennedy Space Center and countless tiny tourist traps all over the world can make it happen, I see no reason why a major theme park like SeaWorld can't do the same. Plus, it'd be pretty hard to make an unthemed flying theater ride, so there's that.