So... what now?

[Reinha]

Gearing up isn't that important imo. If they follow the same formula as before, level 83 gear will be 530 and level 81 gear will be 520. Crafted level 80 gear will probably be 515 and you'll get some from the MSQ. Anything 500+ should be plenty for the expansion. An easy way to get it is to do Eden's Promise normal raids.

I would recommend just MSQ, all normal raids and alliance raids and an inventory cleanup. And if you want to make Gil in Endwalker there is a month to level up crafting and gathering classes.