Possible release date 25 March 2011 ?

It has been possible to pre-order Star Wars the old republic for some time now. But it seems like the retailers is tarting to agree on the same release day now. No release date has been confirmed by Bioware yet, but searching around the net, the same date seems to pop up.

Check this out:

Amazon: Due for release on 25 March 2011
play.com: Due for release on 25 March 2011 (EUR 41.99 ouch!)
shopto.net Due for release on 25 March 2011

Again! Nothing is confirmed by Bioware, But do we see a pattern here?