Professions skills are split between expansions now, you'll have a separate skill bar for each expansion. There are still 950 profession levels in total, just that there is no one single progress bar with 1 to 950 for it anymore. Instead, there are 8 separate progress bars. (The only exception is Archaeology, because it will still have a 1-950 progress bar)
Unfortunately this game misses the mark. The visual and audio experiences are truly this expansions only carry. The questing is the same as itUnfortunately this game misses the mark. The visual and audio experiences are truly this expansions only carry. The questing is the same as it has always been, artifacts and world quests aren't new, more skills taken away from the last expansion (nothing new added to replace them). Island Expeditions, the heralded new feature, is a complete letdown; it's just a scenario with a timer on it. The story is jarring and feels out of place somehow. For a full priced game (that's just an expansion) I can't help but feel a bit ripped off.… Expand

Set sail for the previously unmapped isles of Azeroth. Battle in groups of three as you race against cunning rival intruders—or enemy players—to collect the island’s resources. Constantly evolving challenges await as you traverse frozen landscapes near Northrend, open the gates of an abandoned Gilnean castle, navigate a war between elementals and more. Tides of Vengeance adds two new Island Expeditions to the mix and two new random events, as well as updated rewards.

Blacksmith, Tailoring, Leatherworking all can create their own BoP gear like before with Blacksmithing able to potentially create indestructible versions and can repair in the field instantly (not that big), while Tailoring gets specific cloak enchants with some unique effects like not being able to to be dazed which is going to be very useful for Tailoring/Herbalists.
The idea of the expansion came up after the heroes of Azeroth dealt with so much external threats like the Burning Legion. In their own words, "so when we talk about what's the biggest threat in this world, is it the titan or is it the dwarf paladin that put a hammer in that titan's head"? As such, the enemy (at least during the early parts of the scenario) will be the opposite faction, a "vast army of world-destroying forces".[4]
Hey OC! Many productive people have made some really great spreadsheets/guides for players to progress and start BFA. I decided to compile the most well worked (public) guides I could find and shamelessly post them here. Some might have been posted on the forums before. I'll try update the post whenever something new is posted before release. All credits goes to the people who's dedicated hours upon hours on creating these guides.

Alpha Beta PTR Classic 1.1.0 1.2.0 1.3.0 1.4.0 1.5.0 1.6.0 1.6.1 1.7.0 1.8.0 1.8.4 1.9.0 1.10.0 1.11.0 1.12.0 Burning Crusade 2.0.1 2.0.3 2.0.4 2.1.0 2.1.2 2.2.0 2.3.0 2.4.0 2.4.3 Wrath of the Lich King 3.0.2 3.0.3 3.0.8 3.1.0 3.2.0 3.2.2 3.3.0 3.3.3 Cataclysm 4.0.1 4.0.3a 4.0.6 4.1.0 4.2.0 4.2.2 4.3.0 4.3.2 Mists of Pandaria 5.0.4 5.0.5 5.1.0 5.2.0 5.3.0 5.4.0 5.4.7 Warlords of Draenor 6.0.2 6.0.3 6.1.0 6.2.0 Legion 7.0.3 7.1.0 7.1.5 7.2.0 7.2.5 7.3.0 7.3.5 Battle for Azeroth 8.0.1
Plus, I am a pet collector, and there are plenty of pets to collect in the new dungeon. Completing the dungeon’s challenge mode grants players a Mini Spider Tank battle pet. Continue playing on a weekly basis to earn currency towards items like the Unopened Gnomeregan Supply Box, Mechanical Cockroach, Schematic: Mechantula, Leper Rat Tail, and Rechargeable Alarm-O-Dog Battery.
"'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."
It is really, really a stark change of pace from WoD and Legion where just questing and killing things would result in at least a small but decent profit from a day's activities, typically of at least 1k and often 2k. But now to get that sort of return, I have to really focus on gold WQ's, not spend any money on anything that I don't absolutely have to, and do 45 minutes of Legion content.
World of Warcraft Gold (US) is a currency used in the US server as a medium of trade. WoW Gold, items are rewarded after killing the enemies. WoW gold is a limited resource and is hard to come by even though gold can be earned by various ways. It is still time intensive for any player to gather the gold needed to get better gears which make advancing easier. Because of the enormous need for WoW Gold, it has attracted many exploiters such as dupers and gold farmers. Arguing that they ruin other people's experience and enjoyment of the game, Blizzard has put up a strong fight to combat these exploiters by banning large number of accounts involved in the activities. However, there are as many players who would not want to invest their time and are willing to pay the extra money to get through the game. Generally, the price of WoW Gold in the EU servers are more expensive than those in the US.
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.