**CORRECTION** Hasbro Toy Shop staff have confirmed (had to ask a few people) both Thrawn and Landspeeder are only sold out for day.
— swactionnews (@swactionnews) July 21, 2017
According to Star Wars Action News, the San Diego Comic-Con exclusive X–34 Landspeeder with Luke Skywalker has sold out for the entire show.
Update: the landspeeder and Thrawn are only sold out for today, not the entire show