From EverQuest2.com:
We’re just hours away from Destiny of Velious, and we’ve got a little bit of news to share for Launch Day!
First, all EQII and EQ2X servers will be coming offline at 3:00 am PST [11:0o GMT] on Tuesday, February 22nd, and we anticipate having them back online around 9:00 am PST [17:00 GMT], for an estimated six-hour downtime. This includes both international and US servers.
Second, if you had issues pre-ordering the expansion on Monday, February 21st, please try again! All of SOE’s authentication servers were offline briefly today and should now be restored to normal. Pre-orders can be made until 11:59 pm PST on February 21st.
And finally, don’t miss the Launch Day Countdown webcast, beginning at 7:00 am PST on Tuesday morning! We’ll be interviewing members of the EQII team, giving live status updates, and we’ll even have some trivia questions and opportunities to win some EQII shwag! We’ll be on the air until 9:00 am PST, so tune in on Facebook or on Stickam to watch the webcast.