Comin back to ffxi!

So last time i play was about a year and a half ago, and i've been watching some videos on all the new things in the game and it's pretty overwhelming so i have a few questions to ask. Is empyrean armor still relevant or is reforging artifact/relic armor the way to go now? What are some things i should and/or need to do ASAP? Is seekers of adoulin something worth buying or can i play the game and still enjoy it as much as a i did a year and half ago without it? Any other tips or advice you'd like to give would be much appreciated. On leviathan btw.

Empyrean armor is only margianally relevant (swaps for specific spells and things) mostly Hard Mode/Delve/Skirmish/Reforge armors are the way to go, they will eventually reforge Aby gear so it will be relevant again. I highly reccomend adoulin, Delve was one of the better events they came up with IMO, though you can gear yourself off HM fights and Unity alone if you wish.