My FLGS informed me this weekend that their distributor for FFG games is no longer a distributor for FFG games. They had some hoops to go through for the now distributor to be able to order product. My pre-order for Rise of the Empire was more or less canceled. Luckily the new distributor was going to be able to fill his order so I'll get my copy.
You might want to double-check with your own FLGS that they are aware of the changes and aren't going to be blindsided by not having product they ordered and only finding out about the changes when you show up looking for your copy of the expansion.
Apologies if this is "old news" and I offer this merely to make sure you don't get disappointed that your expansion didn't show.