The thing is, this is not a game for Japanese only. I am not saying that ilvl gear is the only way to go, but they do need to add something that gets people world wide jumping into Savage right when they beat Normal. ilvl gear is the most effective means. I don't see the problem either. People who did Normal on WoW didn't complain they didn't get gear from Heroic mode when a new patch came. I would like to hear how Japanese feel about that in depth because it is kind of silly.
I doubt they are going to take the rotation down to 50 level standard. You can't make but so much dramatic change from 60 to 70(assuming that is the new level cap). I would imagine they are going to make it so you don't feel like you are micro managing your character. Like make a buff a minute instead of 30 seconds, or a debuff 45 seconds instead of 30. Things like Wanderer's Minuet, Enochian, and other complex level abilities are not just going to go away. I can imagine they will make them easier to work with through traits that increase their ease of use. Not saying you do, but it is silly if anyone actually thinks they are just dumbing down the combat. It is just going to be more convenient ways of going about things. In turn the developers as Yoshi-P said, can take the enemies back to a more difficult level. The ease of the next Alexander tier compared to the first two is only a temporary measure for the state of lv.60 combat.
