PhantaFriends.de user PHL-Marcus has edited this rough drawing of the site to show some of the progress made over the off season.
The Yellow boxes 1 + 2 mark the construction cranes. The dotted lines mark the track pieces (included the launch parts) being stored on site. The concrete pillars between them are new. As is the large foundation in the middle of the site, which is lower than the surrounding foundations.
Theming is progressing well on the majority of the facade walls and buildings around the already installed red track. The tunnel from the new Berlin street gateway comes out from the two large openings to the left of the red track (meaning you will directly step out into the area with the facades surrounding and towering over you, and the coaster going to directly overhead).
Since it is difficult to view the site it is impossible to make this completely accurate and show all the details but its a good indicator of how things are progressing. In the past couple of days there has supposedly been a lot of concrete poured along the Wuze side of the site so foundations may be well under way there by now.
The user also made this diagram showing his prediction for the location of the station. Which based off the current site seems the most logical option. The speculation is that the station will consist of the same layout as Taron's with on load and off load platforms.
Red - where the rows for loading the train will be.
Blue = the off load platform.
In between the two large pillars separating the platforms could possibly be luggage storage racks?
What is interesting (and looking back through posts I don't think it has been mentioned here before) is F.L.Y. could seemingly/will most likely be reusing the lifthill from the Vekoma test set up. The track leaving the station turns around into the tunnel you can see and then curves upwards, still in the sitting position. The track installed is allegedly that from the test set up (which we know for certain parts of were delivered to the site). And if you look at back wall of the pit where that track would continue...
A reminder of the test set up lifthill from mrrc's video.
And if the lifthill is at the start of the coaster that means the launch must be half way through the layout then.
Since this is to be the longest flyer in the world the lifthill + launch is probably necessary, and adds an extra block brake section.
Although given how the new generation trains work wouldn't that mean they need another 'sitting position' track section mid way before the launch? Or how else will they evacuate people when technical problems occur and the train cannot be launched? There could possibly be a short dark ride section mid way just before the launch.