Or so we're told. This is the official wording and verbatim ... The 40th Anniversary update includes 12 new aircraft, 12 heliports, 12 glider airports, 6 classic commercial airports (including the famous Meigs Field in Chicago), and 20 historic franchise missions.
This is all quite welcome of course, especially those 20 Promised franchise missions. However the wording is vague just now and open to interpretation as to what exactly an FS2020 mission really is? many so called developers are making quick bucks under the guise of selling missions and its often little more than a flight plan and little print out of maps, one mission pack I bought expected me to download an audio pack to listen to first then go fly the flight plan ... I mean Mission :) and yes that's sarcasm.
If ASOBO take this lazy approach to the classic FSX missions other enthusiastic amateurs have with no proper SDK and voice acting I will be will be quite disappointed, its been two years now since this very good Simulation has been released and the SDK is still quite raw for things like this while they release more and more other content and never really finish anything.
The Original FSX missions were quite clever with suitable triggers to meet and even more triggers with many choices at times, one SAR mission made a lot of randomness in it to give repeat re-playability at least six times over and the voice acting was really quite good throughout, in house MS beta testers apparently.
I so hope they do it properly this time.