I couldn't exactly tell you to be honest, I just can't swallow the price yet, especially if it means that half of the packs aren't going to be populated. I guess I'm souring on paying for maps, something I didn't use to have a problem with. I loved Premium for BF3 and 4, but I can see the effect of paid maps on populations when I want to play certain maps and can't find a server.
That's a bit of a derail for the topic at hand, so some things that could wow me and get me to purchase ASAP:
*Death Star Trench
*Death Star/Spaceship interior maps
*Cloud City/Other locations on Bespin
*Chewie
*Something we heard about but didn't see in the OT, such as Dantooine or Kessel. Like what they did with Sullust.