My attempt at a to-do list for 8.2:
* Flying (aka revered with Waveblade Ankoan and Rustbolt Resistance):
- Run the mainline quest chains to unlock the two reputations
- Explore the new zones, run side quests
- Get a Contract: Ankoan or Contract: Rustbolt Resistance
- Run world quests in Nazjatar
- Kill rares in Nazjatar (one-time 50 rep each, 40 rares but probably only some up each day)
- Do the public event in Nazjatar (150 rep)
- Do the warmode "Battle for Nazjatar" event when it happens every few days (500 rep, win or lose)
- Open treasures in Nazjatar to get Lesser Benthic Arcanocrystal and follow quest chain (500 rep, I think one per week)
- Defeat elite pets in Nazjatar (one-time 250 rep each, total of 3000 rep)
- Level up bodyguards (400 rep for each at level 5, maybe more at higher levels)
- Run the daily world quest in Mechagon (850 rep) and the pet daily world quest (75 rep)
- Run the daily Mechagon quests
- Defeat elite pets in Mechagon (one-time 250 rep each, total of 2000 rep)
- Kill rares in Mechagon (one-time 75 rep each, 36 rares)
* Ramp up new buffs and consumables:
- Gather new herb and ore on gathering alt (gathering will be faster with flying)
- Level enchanting, alchemy, and jewelcrafting to 175 as needed
- Get new recipes (can't find much information on how)
* Essences:
- Await theorycraft on the best essences
- Do weekly islands in case Worldvein Resonance is good