Regarding people who came forward:
That's a bit of a mess.
In 1.0 the Echo (i.e., Hydaelyn's gift) was prevalent enough to warrant an entire group of people who benefited from it: That's where the Path of the Twelve came from! 1.x had a number of people who all were tapped by the Mothercrystal to share in the big events of the future.
Of course, those people would end up mostly being important in the story of the 1.x series, which ended with the Path of the Twelve joining the Circle of Knowing, which is attached to the Sharlayan teachings and Uncle Lou...
And we know people with the Echo are sought out by the Scions of the Seventh Dawn, which is basically the Circle of Knowing rebranded in 2.0
So yes, not everyone attached to the Legacy Tattoo is necessarily accounted for, but for all intents and purposes the people who were retrieved are fucking dead outside of the Warrior of Light who attended the 1.x story and are now the main character of ARR onward.
That's a bit of a mess.
In 1.0 the Echo (i.e., Hydaelyn's gift) was prevalent enough to warrant an entire group of people who benefited from it: That's where the Path of the Twelve came from! 1.x had a number of people who all were tapped by the Mothercrystal to share in the big events of the future.
Of course, those people would end up mostly being important in the story of the 1.x series, which ended with the Path of the Twelve joining the Circle of Knowing, which is attached to the Sharlayan teachings and Uncle Lou...
And we know people with the Echo are sought out by the Scions of the Seventh Dawn, which is basically the Circle of Knowing rebranded in 2.0
So yes, not everyone attached to the Legacy Tattoo is necessarily accounted for, but for all intents and purposes the people who were retrieved are fucking dead outside of the Warrior of Light who attended the 1.x story and are now the main character of ARR onward.