Atm AK is earned every 7 days on the ptr. On live its 5, so its slower. Also you will be much farther behind by waiting. Just doing the WQs with a higher AK will not catch you up to where you should be by magic. Better off doing them still and being able to buy more relic traits at launch rather than waiting (lol) and being behind your raid team that keeps up with it.
Unless youre a casual then who cares about what you do with your time.