The products page for Imperial Assault lists everything as out of stock. Has the game sold that well, or that badly?

due to licensing issues with Hasbro, who has the rights to sell star wars board games, FFG can't legally sell Imperial Assault stuff on their website. Same with Rebellion I think.

The other games are ok because they're not technically board games like IA is.

It's dumb.

So it's not all sold out, it will just never be available on FFG's online store, unless the relationship between Hasbro, FFG, and LFL changes which is unlikely.

Yep..that's why at GenCon you have to go a couple booths over to purchase any IA stuff. Last year all the new stuff was there, just at a different booth.