Related to this, we’ve seen a lot of questions about the general invite process and want to clarify a few things. The method in which people are invited from the opt-in pool is not on a first-come-first-served basis, but instead we look at a variety of factors such as the age of the account. That said, the amount of closed beta invites that we’re sending out is rapidly decreasing as we have met our current population needs for testing. We’ll regularly reevaluate the need for additional invites as we go through the testing process.
Kaivax, a WoW forum community manager, revealed that WoW Classic's class design, battleground mechanics and stats on existing items will be set to their 1.12 state, despite the game releasing content that expands beyond that. This removes "progressive itemization," so if the stats on a specific piece of equipment was changed during the original updates, that won't take effect in this version.
The vanilla WoW Horde leveling guide you see on this site was originally made back in 2006 by Joana (AKA Mancow, or FuriousPaul). The guides have been tweaked many times over the years to make things "faster". The leveling guides were made because of all the messages I got from people asking me how I was able to level up so quickly on new realms. I was first to level 60 on 7 different realms (3 with Mancow and 4 with Joana), even winning Blizzard's "First to Level 50" contest they held back in 2006.