FFG helped X-wing to grow in the beginning when they came out with themed tournament sets that had one of each ship in a wave and you could win one as a prize. There was Assault at Imdaar Alpha and other similar types of events.
Myself, I would like to see 2 Silencers and 2 B/SF-17 in a box set, with AA Kylo Ren crew cards, acrylic ISYTDS tokens, and the theme would be "Resist the First Order". I would make it a 2 list, 60 point 2 ship minimum tournament. One Empire List and one Rebel. Each round, the player with the better score chooses which list his opponent will fly and his opponent then will pick his list. Top table gets to make a 100 point list with the available ships. Best MOV score gets to choose which faction list they want to fly and their opponent gets the other faction list to use (reverse of swiss rounds). If the tournament is large enough to have a cut to top 4, then the top MOV at each table picks their faction first (and gets the corresponding ship) and the other players get the other faction. Finals could then be a mirror match.
If FFG was to do one of those themed tournaments, what would you like to see as the story element and prizes awarded?