Apart from Sydney, the routes mentioned are not 20 years away. Two or three of them could easily be boxed off within 12 months, while the rest may take a few years.
More prospective routes would be the likes of Sao Paulo, Mexico City, Denver, Nairobi, etc.
If we're talking yearly PAX throughput, well 40 mppa by 2030 is a challenge but is definitely achievable. That'd be a start.