What I want is a space sim without all of that trading and upgrading crap. Maybe I'm just looking at the wrong games, but from what I've seen, most of the recent space games have had that as a large focus. Then you have something like Eve, which in my opinion would be absolutely awesome if it wasn't a point-and-click RPG; the entire concept just sounds extremely boring. I don't give a damn about galactic economies, trade routes, evil corporations, or pirate factions. All I want is an engrossing, amazing, and linear storyline (I shouldn't have to play a game twenty times to see everything
), awe-inspiring capital ships, non-stop action, and a general feeling of the immensity of the space environment. And no Newtonian physics, for the love of God. I once played a demo of a Russian space sim whose name I can't recall, and every mission played out like the "jousting" that Cyker described. The entire space sim genre is full of scientific impossibilities; Newtonian physics just seems like a poor attempt to inject "realism" while taking the fun out of gameplay.
In short, I want what I can never have: FS3 
upgrading isn't so bad, particularly if it leans towards the "you maintain your fightercraft" department, i agree trading is as boring as hell, it has its place.
if freespace 3 was made, it should be slightly open-ended in terms of mission area, whilst be linear in structure. a multi-faceted mission area structure, if you will. where you could be battling in one area, and off into the distance, you can see the flashes of another battle, that you may have the option to jump out of the area, and help if you so wish, without having to worry about having to go through another loading sequence.
Newtonian physics have their place, most combat sims were fly-by-wire, as in, pull the stick back, fighter goes up, etc.
what i'd like to see, is a genuine free-for-all battle in a space sim, something that would make the battle of endor look like a campfire explosion by comparison. more visible craft than visible stars. a target rich enviroment, to quote schlock mercenary.
