well from what I understand there are 3 different questlines, all 3 differ slightly but not that much, its only how the NPC recognise you as, theres the warrior of Light the ones that Beat White Raven, theres the Meteo survivors the ones that didnt beat White Raven and then theres the new characters created in ARR.

Warrior of Light get responses like "you look Familiar"
Meteor ones get ?
New Characters get ?

I dont know the second and third ones since I havent restarted or had a character that hasnt beated white raven.