I'm an OCD completionist too! Missables drive me crazy. I'll avoid spoilers like the plague, but if there's something missable in a game I'll want to be told BEFORE I miss it.

I completed 1.0's story but I'll be playing on a new server. Everything in this game is new and I'd like it to feel that way. I'll probably continue my Legacy character's storyline for a bit to see all the exclusive content but I just don't feel comfortable starting a new game in a world where players are already going for relic weapons and have millions of Gil. I want it all to be fresh, I want it to last, I want to earn everything from scratch again and make the most of everything A Realm Reborn has to offer. 1.0 does count, yes, but I'm really looking forward to experiencing this as a whole new entity.