Some new official info from ubi forums

[David603]

Originally Posted by Heliocon

So due to this they should develope the campaign for the mid range market, because in a few months time/1 year the current mid will be the low...

There's no reason why the team can't add more campaigns or an expanded version of the current one in a patch later down the line.

Of course, if a dynamic campaign is added at some point, then the devs will be able to re-evaluate how many aircraft can be put up, or maybe follow the suggestions here and add an option for players to set the maximum number of aircraft.

Given a functional mission builder and there being no limit hard coded into the sim, initial unit numbers are probably one of the least important parts of scalability.