Warlocks have received new spell effects; all the other classes received new effects in Legion. Male orcs are now able to toggle between the initial hunched posture and standing upright by using a barbershop, but the other races are not able to toggle between two postures.[5] There are new druid forms for the allied races, i.e. a Zandalari troll forms are all dinosaur-based, while the Kul Tiran humans take forms made of wood and bone as their teachings come from the Drust people who populated the land before them rather than the Cenarion Circle.

BfA is bringing the standard new profession items that you'd expect like flasks and potions, armor and weapons, gems and enchants. This BfA professions alpha preview is instead highlighting all of the cool extra items that you can craft with professions in Battle for Azeroth. BfA Tailoring is getting Battle Flags, which seems to be a sort of buff banner. We look at BfA engineering items. There's one new profession crafted mount on the BfA alpha so far- but split between Battle for Azeroth engineering and a BfA blacksmithing recipe!
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Despite all of these problems and this laundry list of glaring systematic issues, the crowning achievement of Battle for Azeroth’s endgame is that it still remains enjoyable all due to those two pillars of raiding and dungeons. That won’t last forever. As the expansion goes on, and the grind necessary to progress becomes even more demanding and the time spent in content that simply isn’t fun increases, it will be harder and harder for raiding and Mythic+ to carry the expansion along.
-Bugs- There aren't too many glaring bugs anymore, but you will certainly encounter some. The pathetic thing is that many of the bugs you'll encounter were reported repeatedly during Alpha/Beta and still weren't fixed. Some bugs were discovered after release and players were able to abuse game mechanics without repercussion unless they were one of the more serious offenders. This gave some players a significant advantage over others because they used exploits and at the start of an expansion, that is the time when it's most impactful.
Set up TSM properly, learn it well and I can already see the power potential it has. Second is diversify your markets, learn other markets and the more you set up the more potential profit you have. Third is probably leveling alts so you have a wide range of professions ready to tackle any future opportunities for profit. Forth read patch notes religiously.
Disagree with your comments on Sky Golem. You need about 4200 ghost iron ore make this. Ghost Iron ore turns into bars which are used for Jard's Power source, but you only need 300 bars for that. You also need living steel which is transmuted from triullium, which in turn is transmuted from ghost iron. If you have an transmute master you proc on average about 20 additional trillium bars, that's like 7000g in savings.
Azerite equipment is currently balanced around being able to unlock the outermost, earliest tier of power immediately upon acquisition, while delaying further advancement until the Heart has been further empowered. For example, the first piece of Azerite equipment, gained shortly after the Heart itself, is fully empowered once the Heart of Azeroth has reached level 3. A character at 120 (the maximum for the expansion) may find a piece whose first tier requires the Heart to have grown to level 12 or greater.
"'Going big' increases your production and decreases your waste. How does one make a lot of cards, though? Since they're tied to a daily cooldown, the options are to buy the cooldown from other scribes, or to have multiple scribes... If you plan to step it up and make decks, though, you'll need to either develop a network of scribes willing to sell you their daily cooldown, or make a bunch of alts into scribes."
With the most in-demand decks going for up to 20,000 Gold each, Basil believes that Darkmoon cards (12 of which when combined form a full deck) can earn scribes the highest possible WoW Gold. But he said that it takes intricate planning and logistics to really ramp up the Gold income from Darkmoon cards due to the constraints surrounding its crafting cooldown.