Man all of your casual nights are weird.
In my area, casual night means that I can try something fun that I don't get to fly very often, like an A-Wing swarm or Vader with Swarm Leader and a bunch of Acadamy Pilots or Boba Fett flanked by a couple HWKs or Biggs/Wedge/Luke or some such and expect to go up against a reasonably similar list, unless a tournament is around the corner and people are practicing for it.
I don't think I've ever witnessed someone in my FLGS proxy a card that wasn't released yet, in any of my games or anyone else's I've personally seen. It would feel really strange if someone offered to. ![]()
Play with the toys you have right now. There will be time for the new stuff when it's released.