No ! ESP is just an SDK by M$ And the work of Lockheed Martin is
absolutly separate of FS X. FS X and Prepar3D are totaly different.
Lockheed Martin also promises no compatibility with various X Addons
FS. And ESP is free. Lockheed Martin did not buy anything.
As far as I know, they're still distributing it. Games typically don't
get an official "EOL" like other products do.
They do still support it through their website although further
development ceased when they closed the ACES studio and sold the ESP
assets to Lockheed-Martin.
No by Lockheed Martin. FS X is still available magazin because there
are still boxes. This is normal, many user are left on FS FS 9 and
refused FS X.
Yes, by Microsoft.
It should be noted also that Prepar3D fixes many problems of FS X.
Like what it was possible :)