AlPilotX has released some preview images of his upcoming HD Mesh Scenery v4 for X-Plane 11! v4 is a reworked version of v3 making it fully compatible with XP11 and has some additional features such as Tall Building, and an increased mesh resolution.
If you can read German, or have Google Translate handy, you can check out his original statement on the Aerosoft Forums here.
AlPilotX has stated that the scenery is complete, but he is still in the testing phase. He also stated that the release will follow in the next 2-6 weeks. He has also stated that the new scenery is INCOMPATIBLE with X-Plane 10, and is ONLY COMPATIBLE with X-Plane 11.