Goathead,
Nobody, not even the CEO, knows the answer to that question. Unless the skies fall in economically, CX will very likely take delivery of all aircraft ordered. Whether those will represent growth or replacement will be mostly determined by the economy next year. There are plenty of old and leased aircraft they can park or return if needed. That said, I believe they would like to grow as much as practicable. This might possibly be restricted by something like insufficient crews unless FOP gets its head out of the sand.
Also, I understand CX will make a decision between A380 and 747-8I sometime next year. Not that it matters much.