Do airlines release more award seats over time?

Hi, I’m looking to redeem Qantas points for 4 business seats to Europe in August 2020. I know my chances are slim and as expected nothing is coming up. Would Qantas/Emirates/Qatar etc etc release more award business seats over the next 10 months? or what is showing now is it? thanks in advance!

Generally airlines release award seats at the beginning of the schedule around a year out and then there will be nothing for the next 8-9 months. More award seats are generally released closer to departure as airlines realise that seats are going to go unsold.