The bones of Mythic+ are fairly simple, but it’s that simplicity that makes it Battle for Azeroth’s most rewarding mode. It’s fun, generally only takes about 40 minutes per dungeon and allows small groups of players to push themselves exactly as hard as they’d like. Battle for Azeroth’s dungeons are extremely well-designed and consistently entertaining, even after doing some of them 20-plus times, which makes the challenge of Mythic+ a great way to keep people playing.
"There will be some story-driven quest content, world quests, with a bit of catch-up gear, telling the story of the Horde incursion into the night elven lands, that will lead up to the actual burning of Teldrassil," he said. "We want to be sure we’re actually telling that story in the game. That’s going to be our pre-launch event that unfolds over the course of a week and a half or so. That will be available to everyone who’s playing World of Warcraft, regardless of whether you own BfA or not.
WOTLK and Cata were my goblin training grounds as well (I remember fondly making 30k on a single day after a patch day with Inscription), but since Im only at Legion levels, Im struggling to find oportunities where to start invest and make profit. I've been carefully paying attention to the market and picking small batches of mats to flip. After 6 yrs out im slowly starting to pick up (so far i think i made 100k in a couple of months).
If you're willing to dedicate, get tailoring for increased cloth drops, and look at group finder. Under custom search for "boe" and try to find and join a 2x4 farm group. It's basically just hours of leading npcs into a grinder for loot, but you'll make 20-40k an hour from cloth depending on server prices, and on average every 2-4 hrs you'll find a boe epic worth 80-250k, if luck permits.
There's a few profession crafted pets in BfA on the horizon - Battle for Azeroth Tailoring is getting a Hot Air Balloon style pet, and BfA Alchemy looks to be getting a brand new Transmute Meat to Pet. There are some mount buff consumables from both BfA Leatherworking in the form of a mount barding, and Blacksmithing in Battle for Azeroth will be able to craft Stirrups and Hoofplates to increase mount speed and allow you to interact with things while mounted.