According to the search results, Grand Admiral Thrawn is seen loading mysterious cargo onto his Star Destroyer, the Chimaera, in the Ahsoka series. The contents of the crates are not explicitly revealed, but there are strong hints that they contain hundreds of coffins containing dead Nightsisters. Thrawns alliance with the Nightsisters may involve resurrecting their race by sending the bodies to the main Star Wars galaxy, potentially creating an undead army for Thrawn. It is also suggested that Thrawn may need a large and powerful army at his command to pose a serious threat to the New Republic, as the Empire is in tatters back in the main Star Wars galaxy.