They seem to flow which ever way the wind blows strongest, just tumble weed.
Australia already exports around 70% of packaged meat and it is unlikely that the dollar exchange rate will go up so all the better cuts will still get exported. Yes you will see some cheaper lines only from old cows slaughtered which there will be more as the older breeding cows will get culled. Can you tell the difference from old cow and good grass fed rump, I would guess not.