Welcome to long-term gear progression. This guide will go through major progression milestones that signify increases in damage. It is meant as a reference since availability of materials needed for gear advancement will depend on events and funding.
General Information
By following the previous gear progression guides, you should have mythic equipment in all of your weapon and armor slots. Now it is time to think about Emblems and Best in Slot gear.
The priority is upgrading your weapon as it contributes the most to damage. The Best in Slot damage weapon for all classes is Jaihin. After you have a Mythic BiS emblem weapon, you can start working on armor and secondary weapon.
The general order after working on weapon to a time/resource-gated stopping point is: secondary weapon -> hat/gloves -> shoes -> shoulders (PA)/cape(MA) -> belt. Placement of overall or Top/Bot depends on how much SF you need at different points of character progression and whether you are attempting Necro.
This guide will assume limited funding and that you will be building your own gear. If you are funded, check your server for expected cost of different gear and buy it from TS.