The expansion allows players to level up to level 120, an increase from the level cap of 110 in the previous expansion Legion.[1] Initially, there will be ten dungeons included with 8.0 with Mythic Plus versions of the dungeons and the first raid, Uldir, being available soon after the game's release. Following the beginning of preorders and the release of four allied races in January 2018, the number of character slots per server was raised from 12 to 16; with the launch of the expansion in August, it was raised to 18, to make room for the two additional races unlocked with initial content. The number of available bag slots in the player's backpack, which has been fixed at 16 slots since the game's release in 2004, will also receive an increase if an authenticator is attached to an account.
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.