Released as part of the patch 8.1.5, the Kul Tiran Humans and Zandalari Trolls are the newest additions. To unlock the former, you must reach level 120, reach Exalted status with Proudmoore Admiralty and earn the “A Nation United” and “Tides of Vengeance” achievements. For the latter, you much reach level 120, reach Exalted with the Zandalari Empire and earn the “Zandalar Forever!” and “Tides of Vengeance” achievements.
The most important thing you should note is that there are no official beta keys. Blizzard opens the gates to their betas by granting access to your account — not sending you a beta key. If you’re in the beta, you’ll be able to download and play the WoW Classic client from your Battle.net launcher. If not, you aren’t in the beta. It’s easy to be tricked into thinking you’ll get a beta key from an email that looks like it’s from an official Blizzard address, but don’t believe their lies — they’re all fake.
Sorry! No addons (unless some are made specifically for the new release of Warcraft Classic). Also, Bidding Is A Thing. There were bidding wars for the most expensive items on the AH, which you can only find in IF and Org. There might be bidding wars for the rarest of items on trade chat or the realm forums, for things such as the Hide of the Wild pattern. This drops from Dire Maul, Knot Thimblejack, by the way.
You can’t go wrong with a mage. In fact, Mage was the most popular class in World of Warcraft: Classic due to their ability to farm with ease. Back in the day, the player majority even leveled mages as alts in order to gather gold quickly. In addition to their monstrous ranged DPS, mages also have tons of useful utility. As a mage, you’ll be able to conjure food and water, place portals to the major cities, and even earn gold from doing so.
This option is better to use at level 40+. Higher level you are is better, more money you make then. All you do is farming dungeons or specific bosses. Here you kill a few birds with one stone: you get lots of experience (make sure you have all quests in your quest log, always ask your teammates to share) if you are still leveling; improve your current gear; and loads of loot (clothes, recipes, even crappy grey items selling for a lot to a vendor). If you are in a group, think about your groupmates if they need an item or not, don’t roll need on everything.
FYI: If you’re returning to WoW after an extended absence prior to patch 5.0.1, it’s possible that you’ll have more than the maximum pet limit and/or more than 3 of a kind. However, this will be the only time that you’re allowed to surpass these limits. You will have to pare down your collection, eliminating your duplicates, in order to add new pets.