In "normal" times, what percentage of Australian domestic passenger travel does east-west travel constitute?
If it's more than 15% I'd be very surprised.
My prediction? When normalcy resumes, it will NOT return as it was pre-Covid. At least, not for that east-west travel.
Once the initial rush of repatriation and family re-unions has run its race it might settle down to about 70% of previous, if you're lucky.
Business has learned very well that a lot of the inter-state business travel can be accommodated very efficiently and cheaply with video-conferencing.
Mining companies have already announced their displeasure at reliance on inter-state FiFo.
And without businesses paying for PER-MEL-SYD_BNE jaunts the price of economy flights is sure to go up.
And AJ is sure to want another look at the viability of the connector onto the mid-night horror Perth-London.