BR has firmly put its long-haul eggs in the 77W basket. CI
seems to be mixing the 77W and A350-series. I think both carriers are firmly in the big-twin camp for near-term orders.
The 748 and A380 are possible, but (in my uninformed opinion) unlikely for now. While there are a few routes that would benefit from larger aircraft, there are too few routes to make a small fleet of them financially feasible.
I think both carriers are trying to increase yields by reducing the available number of seats on routes. I know that CI
has, in the past few years, had pretty decent load-factors, but at rock-bottom yields, which has lead to it bleeding money.
Buying the 748 or A380 would only serve to increase the seats and dilute yields.
I can see BR
's next big order being for A350-series aircraft as well, or possibly the 787-9, to replace and upguage its A332 fleet. BR
is in no real hurry to replace the A332 fleet, instead it's being supplemented by A333 purchases/leases. BR
's major concern now is replacing its short-haul fleet of MD
-90 and DH8 aircraft, which are being replaced by A321 and ATR72-600 -- the first of each already being in service.