One of my favorite expansion types from X-Wing 1.0 was the Aces packs. These would take old fighters that had fallen behind in usability and offer them some useful upgrades to make them better suited for the current game. They also had new paint schemes. I know we'll never get them (They have done a much better job of adding upgrades to new content like RitR, Arquitenz, and Imperial Light Carrier, expansions.), apart from the Chimera Expansion that effectively was this. But what would you include in an Aces pack?
Rebel Aces
1 Hammerhead with a blue and white paint scheme like the CR-90's from Sato's fleet.
1 MC-30 with a paint scheme like the MC-75.
1 copy of each of the generic titles: TFA, TFO, and MCDF (THis would make it easier for players to get three copies of these titles without having to buy repeats of content.
About 17 other cards that are a mix of unique titles and other helpful upgrades.
A more expensive beefed up ship card for each to add a third variant.
Imperial Aces
1 Arquitenz with battle damage paint scheme.
1 Gladiator with markings to designate it as being part of the 7th Fleet.
1 Copy of 7th Fleet
3 Copies of a generic title called Outer Rim Defense Force that hurts ship to ship combat, but increases Anti-Squadron Combat.
About 16 more Upgrades
A Stripped Down, Remnant of the Republic/ Backwater variant of Arquitenz.
A Prototype Gladiator with more dice in the sides, and fewer in the front.