It's not just the starwars games of this genre that were good. I'd love to see another freespace or wing-commander game.
Wing Commander Privateer, in HD with proper textures and surround, that would make me a very happy Wolfy (I've still got Wingcommander, W3 and I think 4, Academy, Privateer and Privateer 2 on the shelves from memory).
I would love a decent space combat game with the sort of fun/depth that the Wing Commander and Xwing type games had, it was pretty epic at times doing a run in Privateer to try and deliver a cargo and suddenly coming under attack (will it be Kilrathi, or pirates?)...
Origin was the source of so many truly epic games, I miss them

(the whole Ultima series, except for 9*, Wing Commander).
An X-wing vs Tie Fighter remake would be great, we managed a couple of multi player games of it but on a P166 and 486, so not exactly matched for performance
MissCheif, I remember that, I had about 20 boot disks with the names of the games they would run written on them.
From memory Tie Fighter was almost as much of a pain to get running as Ultima 7 (now that was a game in itself to get a working boot disk for).
*We can forget that ever existed, can't we?