So overall, Capacity goes from 24 Category 'C' Stands (and 2 Category 'E' Stands on the B Pier) to 25 Category 'C' Stands (with the 2 Category 'E' stands on Pier B limited to Category 'C'), OR 13 Category 'C' Stands plus 8 Category 'E' Stands, so there could actually be fewer Stands available near the Terminal [although there would be further Bus Gates available for remote Stands away from the main Apron] if used for the Longhaul Aircraft.
I don't see the point about fewer stands near the terminal. That's only the case if they increase the ratio of code E aircraft. Is that what you meant? Overall they gain a maximum of 3 code C stands at the piers. When counting in the remote stands they gain only 1 code C (detailed numbers below)
One important thing not mentioned in the video is that the non-Schengen level is only an option and might be built at a later stage. I assume that they won't add an additional level to the building later but rather built only the shell initially and do the interior fittings later for the non-Schengen level.
Some more details can be found here: https://espazium.s3.eu-central-1.amazon ... equali.pdf
(German). It's the document describing the competition for the architecture/planning. Most of it is not very interesting but the first couple of pages describe the project in general including the fact that non-Schengen is optional. Also it mentions 2024-2026 as the timeframe for the main construction of pier A, the tower, changes to the baggage sorting system, the extension of the immigration hall and a new centralized bus arrival.
Stands (only those effected by the project):
Remote stands (old: north of A, new: between A and B peer)
Old: 17xC *
New: 20xC OR 8xC (south) plus 8xE (north)
Old: 9xC OR 6xE (4 north, 2 south)
New: 9xC OR 6xC (north) plus 2xE (south)
Total - including remote stands
Old: 33xC OR 24xC plus 6xE
New: 34xC OR 19xC plus 10xE
Total - pier A/B only
Old: 26xC OR 17xC plus 6xE
New: 29xC OR 14xC plus 10xE
* some stands on the old Pier A could be used for D/E aircraft but this was rarely used since Dock is Schengen only and that's practically only Code C aircraft nowadays.