Drzewiecki Design, a Polish scenery developer for both platforms, has today posted via their Facebook page a post regarding the upcoming Tokyo Airport scenery for Prepar3D and future development plans. Drzewiecki Design included six previews of the scenery.
Apparently, it is reasonably hard to prepare any epic-looking previews as most of the work has not been exported to the sim yet (there is no reason to do so at this stage) and renders are not how it will look in the sim.
Due to the upcoming FS2020, Drzewiecki Design has focused on the airport rather than the city. The developers are aiming to release all the products before the Olympics happening this year in Tokyo between 24th July and 9th August.
The plan is to have the airports P3D-FS-XP-compatible, with all the features we had so far (including terminal/hangar interiors, detailed gates with vgds/jetways etc) plus new features that became available lately.