Lylirra just posted the following on the Beta Feedback Forums (source):
“We’re currently in the process of preparing the next beta patch for release. As part of this patch, we’ll be wiping all characters and items (including those placed on the auction house).
While a specific ETA is unavailable at this time, please note that Beta Patch 5 may go live as early as tomorrow afternoon.”
Now lets collectively cross our fingers and pray for more content.