FFG has a few challenges the current product types don't meet.
1. A mass market compatable sku other than the starter sets.
The current line of products is too large and too interdependent to make a good mass market product. While it's great for players and tolerable for specialty stores. target is not going to want to re order specific ships when they run out and they are never going to give so much shelf space to this game until it reaches Pokemon and MTG levels of popularity.
2. An obvious "seccond purchase" for new players.
While aces packs are not bad they are not great. A good seccond purchase product would guide players to the 100 point game and make it a fun and interesting transition.
3. A good format for character themed paint jobs
The current products are all designed to be purchased multiple times. However there is a demand for character specific paint jobs that players will only ever need a single copy of. Thus there is something different needed to make this work.
So I think there will be ship bundles that function more like a board game expansion rather than the miniatures structured products we have now. Featuring Unique painted ships and pre built 100 point scenarios when combined with the base set ships.
There will be a TFA set that features Kylo's shuttle and Poe's black X-wing and perhaps something else. This product is explicitly designed to pair with the base set so it won't need the Poe cards from the base set and the ship it's self will get a title card. But it will include more named pilots for the x-wing and many unique character upgrade cards and maybe a new card for the falcon so Rey can pilot it.
I imagine there will be one focused on the rouge one movie. That pairs with the original core set.
These will be the first cross faction expansion packs. So while each player may buy only a single copy they are safer in assuming most players will want one.