You might see thing start to change . 777 will start to do more of the longer turns as the 330 retires and more 777 arrive . 380 might do BOM turns but the bulk of the turns will be 777 allowing those pilots to spend less time away if desired. Some 777 pilots are starting to see the change in their rosters. It's such a big fleet that if you want turns you can get them and maybe even some nice ones. Not everyone wants layovers or ULR's. The hours seem to be remaining high on the 777 and low the buses for FO's. Some are wanting and needing more hours for upgrade. Long term the 777 will have most of the turns and will provide those will the be at home roster. Talk is upgrades will start to slow so time in the RHS will be longer so you should take that into considerations for planning a lifestyle roster.