A video was posted today on YouTube of the upcoming 747 Immersion and Koln Bonn airport. The same video can be seen below.
The airport will have a fully modeled interior and see through glass. The airport also includes static aircraft with dynamic people walking from the jetways to the aircraft. Tons of static objects have been added giving the scenery loads of detail and immersion.
As the preview in the video is short on the 747 Immersion nothing to strong can be said about it.
(Please note Koln Bonn airport and 747 Immersion are still in beta and do not represent the final product)

