In the wiki the legendary armor obtainable by raiding is referred to as legendary pve armor but the rai are only a small part of the pve content.
Wordl Boss, dynamic events, Meta Event, hearts, dungeons, fractals, jumping puzzles, adventures, mount races, bounty, crafting, personal story, living story, strike mission, dragon response mission, mini-game are all part of the pve.
It should be added a legendary armor really pve that allows those who play the largest part of the pve content but do not like raids to be able to get it.
It could be similar to the ways to get the legendary armor of pvp by replacing items obtained with pvp currencies with items obtained with the many currencies of pve or the completion of achievements and collections. As an ascent armor to get the legendary armor you could use the one created with crafting. The legendary armor obtained with the raids would remain, as now, the exclusive skin.