There's a new notice up on Warcraft's Facebook site with some intriguing new information:
What does this mean? No idea, but it appears as though the various class changes and tweaks that were announced for patch 3.3.3 aren't set in stone just yet, which is what Ghostcrawler said late last week. This fluidity should be expected, after all, as it is a public test realm. Players on the PTR may want to keep an eye out for the changes, and possibly expect some sort of minor patch this week. When an announcement is made about the changes, we'll let you know!