There's at least three that are just off the top of my head (KotOR one, Galaxy in Turmoil, and another Battlefront remake one).
Regarding our planned missions and campaigns, here's what we are saying publicly
Fate of the Galaxy will come with a high level of single-player content. These include multiple campaigns, standalone missions, and the ability to create missions using the FSO mission editor FRED2. Multiplayer servers will also be maintained and available to play on with friends.
The first three campaigns narrate three interconnected stories set at the beginning of the Galactic Civil War. Each of these three campaigns consists of about 5 missions, thus designers put high emphasis on quality mission design and high replayability. The player's performance throughout the campaign will affect how later missions play out. For example, the Alliance campaign will finally pit a ragtag Rebel task force against a dreaded Imperial-class Star Destroyer, and the player's performance throughout the campaign has a major impact on this encounter's difficulty. The best possible outcome is hard to achieve, thus a number of playthroughs will be required.
Players receive different types of training in different campaigns. The Alliance mini-campaign will start with a basic training mission that, aside from teaching the basics to new players, introduces the player to Fate of the Galaxy's unique gameplay features. The Imperial mini-campaign starts with an advanced training.
Standalone missions will also be included in the first release. Many of them will be serious, story-driven missions, but there will also be arcade-like "challenge" missions in which the player must accomplish a wide variety of objectives, such as surviving two minutes within a Strike-class cruiser's firing range. There will also be a Practice Zone mission, where the player can test flying any of the small craft and actively spawn in any craft in the mission as a hostile or friendly to practice combat.
Three additional campaigns are being worked on and will be available when the game is released to the public, but specific details remain under embargo until public launch. This large component is code-named Project Alderaan.