Aggro is completely free, the rigid nature of FF14 combat design means mitigation is literally just "push button when see cast bar", they have largely removed tanks needing to position bosses in favor of the bosses repeatedly resetting to center field (and inflating boss hitboxes so that ...
That then leads into a question of how to tune and design encounters... Personally, I'd like to see them step back and pull ideas from ARR and HW, where things were a bit more woolly and not everything was really set in stone. Titan does minibusters before his tankbusters, and ...
Crafting in Heavensward Crafting is getting new recipes, obviously. Mentioned above, there will be “company crafting” which caters to Airships and Housing Items. They said that houses can now be “Glamoured”. In any case the biggest news in crafting will be the introduction of specialization...