As a companion to this announcement, Senior Online Community Manager Stephen Reid revealed that all invites for weekend number two were sent out.
Quote from Stephen Reid
All invites for Beta Testing Weekend #2 have now been sent.
Please check your email (including spam folders) and login to swtor.com/tester/ to see if you have been accepted for this weekend's testing. If you were not invited to this weekend, you may be invited to future testing.
As always, you can be sure that when more information becomes available on the Beta Testing Weekends that we will bring it to you as it happens.