SamScene3D, a developer behind well-known VFR sceneries for FSX and Prepar3D, is after releasing Prague Century X scenery recently, working on Seoul City Wow for FSX and Prepar3D. The previews and some insight on the development have been shared via their website.
The development of the scenery is finished, but there are still some issues, with the omptimization, that are currently being fixed. That is what the developers wrote in the post. The previews can be seen below.