Blizzard are preparing another wipefest patch! This one is quite thorough in terms of wiping but as yet the changes look minimal. They have promised to keep us posted:
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. Items, auctions, artisans, followers, and friends lists will also be wiped, and your Beta Buck balance will be reset to 50.
While we do not have a precise ETA for when Beta Patch 17 will go live, we expect downtime to deploy the patch to be minimal. Please stay tuned to this thread for updates.