BER slots and demand

So I have a question.

BER base slot count appears to be 9, but on older servers TXL has 7 and SXF has 5 slots per 5 minutes. That’s a total of 12 slot banks. How will the slot situation at BER be handled once this airport is introduced to the game?

Second, will TXL + SXF demand be merged into one single BER demand ?

The new BER is a separate airport with 9 slots per 5min.
Both TXL and SXF will fully hand over their passenger and cargo demand to the new airport.
On new game worlds (like Domination), TXL and SXF won’t be included anymore - on old game worlds, both airports will technically continue to exist for now, just without demand of their own (only getting some trough the ground network).