This is a surprise... I didn't think CI was interested in big Boeing other than 748.
Is it safe to assume CI will get 77W before it will get A359? That's probably why they did it. 77W to replace 744 is a pretty tried and true formula for both passenger and belly cargo operations so we should see the 3 class 77W on premium TPE-LAX/SFO/JFK routes.
This does beg the question... what will they do when A359 arrives? Would CI be better off trading some A359 for A358, which is better replacement for A333?