Were there any promotional or exclusive stuff from Fantasy Flight at Star Wars Celebration this weekend?

They had the x-wing Raider on display and the twin Suns expansion pieces. The sculpts look really good on all of them. They were running demos of all three games in the booth as well. Only stopped by one day to check it out, but didn't see anything else newsworthy.

For IA, the Rodian Hunters and Wookie Warriors were spoiled. As was a stormtrooper pack

But no alt art cards or anything like that?

Nope, not that we saw, though the Armada wave II items stated pending approval. They were running demos of Imp. Assault, X-wing, and Armada without promotional giveaways or sale items.

Yeah...they had nothing to give away or even for sale. To be honest, FFG rarely does promo stuff even at GenCon (beyond early release of retail product).