By far the best low-key dark ride that works over and over again is IMO Snow White. It's subtle, but the beautiful feel is magnificent. It's also interesting to note that at Disneyland Paris the smaller attractions have nice queues. Very small, but nice.
I think Pan would work wonders as a headliner. Pan, Poppins & Beauty makes that 3 big attractions that I'm sure will all work great, but the fact that we have so many ips seems a bit excessive. Even in Fantasyland, there is usually at least 1 big non-ip attraction.
I think a non-ip mountain attraction like the Matterhorn would help this. Thoughts?