Yes, not a lot of point in looking at availability until about 1-2 weeks out, as that is when numbers for revenue bookings might start to settle (more so for international flights), and then from a week out, upgrade processing starts to happen, in order of status. Assuming this is QF you’re talking about, that’s CL/WP1 from up to 7 days out, WP generally from 1-2 days out, and then all others usually in the final 24 hours, from what is left.
Cheers,
Matt.