As an additional note to what others are writing, let’s not forget that they haven’t said mystery boxes are the ONLY way to get wearables…the quote below (fully quoted since Vastar only picked the part he liked hehe) seems to imply that crafters can make some as well…
Seems like not only will wearables be craftable but they also will be somewhat cheap so if you really want a full set of X wearables, you’ll just have to spend some time playing to buy them from someone else or something. And this seems like it will be fairly easy and not restricted to only the richest or most active based on “many players”.