From their announcement:
New Firestorm Armada Space Ships
We are releasing 5 new Firestorm Armada models this month. New to Firestorm are the Marauder Pirates, with the first 2 ships included in this release – watch out for more marauder Pirates to be added in the future.
New Uncharted Seas Ships
And for Uncharted Seas fans we have 11 – yes, that’s eleven – new models this month. Every fleet is getting at least one new model, plus October brings the first sighting of a new rase in the Uncharted Seas – they Sky Pirates.