First of all, thank you very much for your kind words. Especially since I have a soft spot for fanfics.
(Though I'm definitely not a perfectionist, else I would never finish anything...
)
To address your questions:
- I want to make multiple endings, but I'm not sure I can commit this much time. For now, I don't have even one satisfying ending, so I am focused on this. In the future, if possible, I'd like to add alternate endings where you basically switch sides and ally with some other Great Faction, which will affect the ending and also some parts of gameplay (like new/different equipment). For now it's a pipe dream though.
- Dimension X is done and I don't plan to expand it any further. We are not at war with the Micronoids right now, so the Council doesn't want to stir up shit on a new front.
- Related to the above, there is no need to add more Dimension X aliens. I mean sure, if it was very low effort, I could add more races, but it wouldn't have much impact on the game. I don't plan any adding new Dimension X missions, unless maybe some "side quests".
- There is no as fouth promotion as such, but there are some other similar thresholds later. (And I think that basic BlackOps stuff is not really that great.)
- I plan to make some more Moon and orbital missions. We'll see. As for Cydonia - not planned right now.
- I don't have a good concept for Cydonia. Suggestions would make sense.
- Multiple sides are not possible, in X-Com, sorry... (Unless you use one of them as civilians, then... sort of)