"Space Marines are not after Tau".
Personally I am not going to disagree with these sources. Do I want Eldar sooner rather than later? yes, but none of these rumor sources is changing the time frame of Eldar. Its only Space Marines that are on the stage here.
Hastings word is still canon, our rumor check has an extremely good record. The source of the Space Marine rumor seems to have the credentials, and is a new contact. Will we see Space Marines next? I am here to report what I receive and can dig up, so I will let you decide.