the level 60 gear will be better than what we have now for sure but your gonna need gear to do the crafts on the way, unless they rework all the recipes from 2.0 to 3.0 so that lower gear is enough to progress to 60.. but that seems like to much work. and so chances are new gear all the way to 60.

that also being said if you have artisans now that will in all likelihood be enough for you to grind to 60 with. where as af gear might not be.