I’ve sent this over to the team, and either myself or another editor will reply to this topic, letting you know what the next step will be.
That being said, it is unlikely that the new runway will be added soon, as imagery is not fully available.
Furthermore, adding the new runway will interfere with the 3D buildings currently at RKSI. Not to mention, IFAET has a “rule” in place preventing editors from working on previously edited airports until the remaining Class Bravo airports are completed. A manager or supervisor, however, may be able to work around the aforementioned items.
Thank you for bringing this to our attention. 😁