MK-Studios has been working on a Helsinki Airport scenery for some time now and has today shared a total of four screenshots showcasing, what looks to be, a maintenance hangar, and jetway models.
The developers received a lot of support and information regarding the airport that resulted in texture and model changes to match the real airport very closely.
The post also mentioned Lisbon scenery. The Prepar3D V5 version of the Lisbon scenery should release this weekend. After the release, the developers will focus on transferring Tenerife Vol.1 and Vol.2 to Prepar3D v5.
Source: MK-Studios Facebook page