well from what the dev originally said a while back, players finishing events in 1.0 will be recognized in 2.0 for what they did, this may not directly mean that they are legendary or famous but could just mean NPCs from 1.0 who survived recognize them in 2.0 eg, The Generals, Cid, ect.

Also i think some of the regular NPCs of the Lancer Guild are also shown standing around during the test vid that was released a week back so it may not be that long in the future. Personally i hope it is very long into the future cause i want to feel like my Char carries weight / is important in 2.0 :x