First of all I would like to thank you all in the name of the whole team:
You gave us some real valuable and (largely) objective feedback.
Because of your reactions and valid arguments we have decided to slightly redesign the hub-system. The following concept is of course maybe still not final (which lastly depends on your feedback).
And there is always the possibility that we might encounter some severe difficulties during the development which might compel us to reverse the new concept.
Nonetheless we would like to put the new concept forward for discussion.
So let’s get this started

The basic idea of a hub-system is going to remain.
But there are no longer only 6 airports as we had it planed but there are now going to be 20

These 20 international airports are going to be assigned each to a (real) country.
In this country you are going to find more (minimum 2; maximum 6) national airports which cannot be approached from outside the country.
Whereby these 20 Airports are not mandatory, ultimately the total count of airports is crucial, there should be about 80 (+/- 10%) of them. Meaning that there are 24 countries with each 3 Airports (=72) or what would be imaginably too, 18 countries with each 5 airports (=90), this is something we are going to decide later on, now it is mainly about finding countries that have at least 3 important airports (1 international, 2 national). So countries like Luxembourg are excluded a priori (:D).
If we should despite everything get round to too many airports we will probably have a poll to choose the most popular.
To clarify this I am going to explain this with an example. E.g. Germany:
The international airport would of course be Frankfurt, national I would spontaneously choose Munich or Berlin.
So Germany would be a good candidate for a country (which it is of course

In the other thread we have collected a lot of suggestions for airports and countries and these I think are going to a good basis for this discussion.
Nopott has summarized them for me (merci

Germany
1. Frankfurt -> internat.
2. Munich -> national
3. Berlin -> national
4. Erfurt -> national
Russia
1. Moscow -> internat.
2. ??? -> national
3. ??? -> national
England
1. London -> internat.
2. ??? -> national
3. ??? -> national
Japan
1. Tokyo -> internat.
2. ??? -> national
3. ??? -> national
China
1. Beijing -> internat.
2. Hong Kong -> national
3. Shanghai -> national
Australia
1. Melbourne -> ???
2. Sydney -> ???
3. ??? -> national
Egypt
1. Cairo -> internat.
2. ??? -> national
3. ??? -> national
United Arab Emirates
1. Dubai -> internat.
2. ??? -> national
3. ??? -> national
Southafrica
1. Johannesburg -> internat.
2. ??? -> national
3. ??? -> national
USA
1. New York -> internat.
2. Atlanta -> national
3. Los Angeles -> national
4. Las Vegas -> national
5. Miami -> national
6. Chicago -> national
Brazil
1. Rio de Janeiro -> ???
2. Sao Paolo -> ???
3. ??? -> national
Venezuela
1. Caracas -> internat.
2. ??? -> national
3. ??? -> national
Mexico
1. Mexico City -> internat.
2. ??? -> national
3. ??? -> national
Canada
1. Toronto -> internat.
2. Vancouver -> national
3. Montreal -> national
India
1. Delhi -> internat.
2. Mumbai -> national
3. Kalkutta-> national
New Zealand
1. Auckland -> internat.
2. Christchurch -> national
3. Wellington -> national
Total:
16 Countries
34 Airports
Concerning wishes for flight routes I have to ask you not to make any suggestions for now, this is something we are going to tackle separately.
Probably some of you are now going to be unsatisfied with this – but most of you will like it, I hope
