This has been talked about an awful lot on here, and the answer is always the same. We will be getting the Sirens of War expansion when PWE releases the content publicly, which might take a little while. So we won't be getting it tomorrow, but we will be getting it as soon as it is released for our use. Which is pretty awesome I think. So we just have to be patient and wait for the GMs to do some awesome work once they get the data. Just keep watching for the patch release previews that they do with important updates <3