Guild Wars 2’s Heart of Thorns expansion stress testing is set to begin on March 24th, according to emails going out to lucky invitees yesterday and today. The tests are planned in two batches this coming Tuesday at 3 p.m. and 8 p.m. EDT (not Thursday, as some invites suggested).
[P]lease know we will be doing more tests in the future. If you want to boost your chances, sign up for the newsletter, as we draw some number of testers from that pool.[Source: Forums. Thanks, Siphaed!]
Also — this is important: Our invitation does not include links other than a link to this very forum (actually, the Heart of Thorns sub-forum). If you or someone you know gets an e-mail that suggests you use a link to access the test, or validate your accounts, or that is some other way heads you to a site other that our official site or forum, you should not click the link. After all, the e-mail itself contains the info you need to know to test, and the only link heads directly to and only to our forums.