That "quiet area" next to the Skyway building is currently being looked at for that exact proposal you mentioned. If one of my managers gets his way, than the Fastpass line would come in from that direction while we would have better looking butterfly-type extension queues outside the front, similar to Buzz. Everyone hates using the butterflies inside the building so they are looking at other options to not use them.
Oh, and by the way, we don't have lockable doors. Just a chain and a trash can
Oh...that would be nice! Is it just me or has queue management taken a nosedive in the past few years...? I'd love to see them start to control the queues again starting with Space (and how about Test Track...why don't they leave that outside queue setup year round?!).