From the post:
Stationed at numerous bases throughout the galaxy, the scientists of the Tarkin Intiative were responsible for many of the Empire's greatest weapons. Most notably, they designed the first and second Death Stars—fantastic battle stations capable of obliterating whole worlds with their superlasers.
But the Tarkin Initiative's scientists didn't stop at superlasers and Death Stars. They worked on projects of all sizes, including assassin droids and blastomech droids. And two of these droids will soon make their way from the Tarkin Initiative's think tank to your games of Imperial Assault with the BT-1 and 0-0-0 Villain Pack.
Like other Imperial Assault figure packs, this expansion introduces a carefully detailed miniature for each of its namesake characters. These are accompanied by all the Agenda and Deployment cards you need to field the droids, plus new missions and five Command cards that offer surprises for both your campaign and skirmish games.
You can pre-order your expansion packs now.