You will see a resurgence of power leveling services, item trade services, and gold farming. Classic will have a fresh economy meaning for your average gold farmer time spent in classic is way more efficient. It will probably be worse than it was back in the day. Just look at the blizzard group finder on retail, littered with advertisements for m+ boosting websites. Disgusting. There will be so many gold farmers blizz probably won't be able to keep up. And this is what I truly fear because if the gold farmers start to win activision will step in and introduce wow token. And classic will die.

Nov 15 Little Test on Class Quest Rewards Hey guys, I did a little test on certain class rewards to check whether they are adequate or not for the level they are obtainable. Paladin - Verigan's Fist is a famous weapon, added probably during the Naxx patch and lot of paladins remember lasting it for long time. Obtainable level is like 22, with party of same level players. And the Mace is equivalent to a level 26 Blue Mace. This means it's not bad! Warrior - Brutal Hauberk is infamous warrior chest. It is obtainable at level 20(as I remember), but it requires running a level 28+ dungeon. And it's mediocre - it compares to a level 24 blue, which is stupid. Whirlwind Axe is a famous warrior weapon which requires a nanny. :D You get level 30 and then pay people money or beg them to help you. This is not even doable with normal party until 35ish. Whirlwind Axe is equivalent to a 35 level Blue Axe, which is decent but still seems to be forcing it. Unless you hire a nanny, being social will probably help you get it at around 35-36 with similar level players. Warlock - Enchanted Gold Bloodrobe is pretty famous. I am not sure when it is exactly doable but is comparable to a level 35ish Robe. I think the verdict is that Paladin's Hammer is by far the best and the reason for it is that it was added later, at the end of vanilla, when Blizzard had more brains. :DHolylr1 Nov 15
Another way to make gold. This option works well at level 60 when you have some good gear already. Obviously, you should have some gold ready to buy reagents. Be ready for expenses up to 225 skill points in any profession: items below that are not worth much. You will get first income after 225 skill points in Leatherworking, Blacksmithing, Alchemy or Tailoring. Unfortunately, Engineering and Enchanting will still require some investments.  The only way to make gold with enchanting is disenchanting skill (we talked about it).
A lot has happened in World of Warcraft in the fifteen years since it originally launched, and over that time we’ve come to expect certain things, not just in WoW, but in games in general. As players explore Azeroth as it existed back in 2006 during the WoW Classic beta, they’re reporting bugs – but in many cases, these ‘bugs’ are really just features that are working as intended.
You're absolutely right! I've changed the opening—I hope it gives you and your list the credit you deserve. As for those other tools, I didn't include them originally because I didn't consider them to be class specific. I'll include the Base Stats Calculator here, plus add a message at the top directing people to your list if they want a more comprehensive index!
I think that the token is a nice solution for the problem. Back in the days, blizzard tryed to ban gold sellers, but it was a lost cause. Instead, the token seems to have resolved the problem, letting workers that want to raid with consumables and stuffs to have the golds to do it. Personally, I don't find the gold buying really fair, but I understand that for many people is a necessity and I prefer to leave the economy and the farming spots to the player instead to the gold sellers.
My main plan will be to focus on raw gold in the beginning. Then I will spend my gold on leveling tailoring and enchanting so I can shuffle enchanting materials which is likely to be very profitable. I already have some shuffle ideas, and I will look for more. Then I’ll work on obtaining the rare enchanting and tailoring recipes to craft those for gold.