Confirmed on Twitch live stream today, Mark Jacobs stated that Beta 1 will be delayed. On a positive note, he also stated that Beta 1, Alpha, and IT testers will continue to be able to access and play the game as they have been during the last few days of intense testing. It just won’t officially be Beta 1.
Mark further stated this will be a short delay of days to weeks, not months. The reason given for the delay is the client crash rate is too high. Mark intends to update everyone on Thursday regarding the length of the delay.