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.