SSI GoldBox Games where you have multiple characaters (Champions of Krynn, Curse of the Azure Bonds, Secret of the Silver Blades, Dark Knights of Krynn...etc...)
Star Wars XWing vs Tie Fighter
Star Wars Jedi Knight (revamp?)
Wing Commander Series
I'd love to see a remake of TIE Fighter, complete with single player campaign. XW vs TIE was great fun, but only as a multiplayer game.
By the way, if you're a fan of Wing Commander, check out wcsaga.com. They're working on a total conversion mod for Freespace 2 that is set in the WC3 timeline. There's already a playable demo available. The other remake I highly recommend is Privateer Gemini Gold (priv.solsector.net).