A "stat squish" and "item squish" was implemented to lower the numbers used in the game, e.g. a legendary item previously with a level of 1000 reduced to 265. Unique class-specific buffs are added back, i.e. mages' Arcane Brilliance and priests' Mark of Fortitude. Titanforging—a random event that raises the initial item level of an item gained via drops or rewards—is still in the game; however, if the item is one of those affected by the Heart of Azeroth, then that item cannot be titanforged.
Zandalari troll (8.1.5) - "The Zandalari are a proud people whose origins date back to the early days of Azeroth's history. Their fierce warriors ride dinosaurs into battle, and they possess one of the most formidable naval fleets in the known world. But enemy attacks on their borders—as well as unrest within the king's council—have threatened the kingdom's foundations. By returning stability to Zandalar, the heroes of the Horde can gain a powerful new ally.."
They're segmenting professions by expansion. So that 100 skill level for legion is just for legion. There'd be another 100 skill in draenor blacksmithing or whatever. It's a better way to do it. As /u/UristMcUselessNoble said above: From what I've understood, instead of one one 1-800 profession, each Expac will have it's own profession level, which mean Classic will be 1-300, Cata will be 1-75, Legion 1-100 etc.
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