Traf,
There have been a number one of opportunities for senior 747 pilots to move across. I remember reading things like they would never fly a twin over water, never fly a FBW Airbus where the pilot does not have the final control, CX is ordering the 747-8i and thy will be the senior pilots flying them. CX is buying the A380, and they will be flying them as the are the only ones with super category experience......
There are many of these so called junior A350 pilots that did their time flying all the regional patterns while junior pilots to them were going to work only a few times a month on the 777 and getting 50% more salary.
Think you are misguided as to the rosters on the A330/A350, have a look at the CMP pairings just published to see the luxury they are in for.