With today’s patch, in addition to gameplay updates and bugfixes, you’ll now see an informational window on the character selection screen.
The new window contains some general information on what’s coming, and it can be hidden and revealed by clicking the circular Burning Crusade Classic button on the same screen. This is not the point at which you’ll choose between the two games (Burning Crusade Classic and WoW Classic Era). That decision will become accessible in the pre-expansion patch.
We don’t yet have specific dates to announce for the pre-expansion patch and Burning Crusade Classic launch to share, but we’ll let you know what those are here on the official site.