I kinda want to get one of the AT-ST ones just to have the cool mini.
Source
From the post:
Ally Packs and Villain Packs for Imperial Assault bring new adventure to your campaign and skirmishes! In all figure packs, you’ll find detailed plastic figures of iconic characters, as well as new Command cards, Agenda cards, Reward cards, and Deployment cards. In addition, each figure pack features a new campaign side mission and two new skirmish missions that use the same map.
In our last preview, we explored an infamous rogue and a deadly bounty hunter with the Han Solo Ally Pack and the IG-88 Villain Pack. Today, we’ll take a look at the new strategies opened by two more figure packs as we preview the Chewbacca Ally Pack and the General Weiss Villain Pack!