... the DDF was for the BASE GAME, nothing to do with paid expansions.
This is the part I doubt.
Honestly, I was not part of the DDF myself, but I did read large parts of it. Was this ever stated, that all the concepts would be part of the base game? Or, if yes, the first year of the base-game development?
Don't forget, the base game will still see some evolution. I haven't seen anything so far that would let me doubt this promis. Passanger missions, for example, will come. I am sure about this. And if they come, I can not see, why it shouldn't be possible to pick up passengers at space stations, even if the implementations is part of 'Horizons'.
And regarding Powerplay and CQC: weren't first tier NPCs part of the DDF and isn't powerplay exactly about them?
CQC migth be a new addition - but I am looking forward to it quite a bit, even if I am by far not the usual audience for it. It migth be new, but this doesn't mean it is bad. And many forum members asked for something like this, too.
By the way: it is not the case, that I am all positive about ED. However, I don't have problems with the features missing, but how some of the existing features were implemented. The relation from (planet)system states and commodities market, for example. I do not understand, why lokal conflicts do not change the request for weapons and combat stabilizers. And if those are forbidden in the system, their prize should rise at the black marked (which brings me to smuggling... Oh well...)
All this game mechanics are in game already, and I don't think, according feed-back mechanisms would be too difficult to implement - without the necessity to re-write the procedurally generated nature of the economy. ED could be so much more with dependencies like this - why not implement them right from the beginning?