I would focus on trying to do anything that isn't going to be around in 2.0

Namely: Getting all your GC quests completed, make sure you get a goobue mount, try for some primal weapons, get all your aetheryte camps and gates, do the main scenario quests.

You will always be able to level up, but there are certain things that won't be around much longer (I think yoshi is preparing a list for 1.23) and I would make sure you do all of that before it's gone.