The additional recipe ranks can be obtained either by exploring the outdoor Broken Isles zones or as rewards when you dive into the dungeons of the region. If you’re feeling up to the challenge, you can aim to hit skill level 100 and player level 100 to open up profession world quests, which rewards higher rank recipes for your Legion gold making operation.
When you launch the game you can choose from two opposite factions (Alliance and Horde), 7 different races for each factions and 6 different classes with very wide mixture of the character's appearance. World of Warcraft play involves the completion of quests while traveling through the story line, gaining experience from the quests to level up the characters and picking up the useful loot to trade with other players. Once a player feel strong enough, or simply just wishes to find some better items, players can visit dungeons where a group can fight together to get better loot from stronger monsters. Near end-game the biggest dungeons require a raid with up to forty players to face and accomplish the hardest challenges for the most valuable items. Another big part of the game is the Player vs Player (PvP) fights where gamers can play againts each other in 2vs2, 3vs3 arenas or battlegrounds for PvP rewards.
The hexweave bags are still a safe bet unless the new 32 crafting cost is like 10% of them. The one thing I'm more concerned about is the professions squish. This will make the old world items that we've been selling (TBC Dust still sells by 200 stacks easily) only required for Transmog and not leveling. This was a better option for a lot of professions (especially enchanting). Expecting their near-death with the next expansion. :(
I think that's server dependant. I make a lot of Golems, but the price on my server is high enough that you could buy all the living steel and still make about 20K (almost 200kg on AH). Its just that you proc all the way up the chain. You proc 20% of your trillium, and then 20% of your living steel. SoH and Ghost Iron are such low effort farms, too. 20% of 180 Trillium Bars at 500g is 18k more profit, 20% of 150 Living Steel at 3500g is another 105kg. That's an extra 25k profit per Golem. If they stop selling stockpile them for the next expansion, they always boom with the price of herbs. And a consistent 20% proc rate is the opposite of RNG, its extra free stuff as a benefit to completing an extra quest (not to mention for new alchemists the investment of leveling Vanilla Alchemy). You're looking for some get rich quick scheme, where the real way to build wealth is patience and volume. No market is going to be viable because you want it to be. Only because you make it viable.