unfortunately I don't have time to read all that but I skimmed it, and in response for it in case you want new ideas and these ideas aren't in there, here is my simplified description of my dream game.
ships should be heavily modifiable like in EV nova. Licenses, different ships that can equip different weapons, limited space it's all great.
fluctuating market. Market prices should change, but different planets or regions whatever should produce X of X resource, and other regions will pay through their nose to get it, so you can establish routes.
Gravity, I believe you mentioned, would be cool and a great boon to your game, something most others probably don't have.
missions are generally lame, probably only should have a training mission chain.
possibility to own planets, solar systems, or even galaxies, all the way down to even just one building with employees and such.
different races, like EV nova.
"police" "pirate" "trader" and "merchant" AI's.
I can't think of more atm.
ships should be heavily modifiable like in EV nova. Licenses, different ships that can equip different weapons, limited space it's all great.
fluctuating market. Market prices should change, but different planets or regions whatever should produce X of X resource, and other regions will pay through their nose to get it, so you can establish routes.
Gravity, I believe you mentioned, would be cool and a great boon to your game, something most others probably don't have.
missions are generally lame, probably only should have a training mission chain.
possibility to own planets, solar systems, or even galaxies, all the way down to even just one building with employees and such.
different races, like EV nova.
"police" "pirate" "trader" and "merchant" AI's.
I can't think of more atm.