Where you high/drunk when you typed this? I ask because I cannot figure out for the life of me what it meant or how it had anything to do with what you quoted me saying.
What about tier 0? Well, from how I read the proposed new area changes it'd be a significant boost to leveling assuming you moved around ever couple of levels (that is assuming the larger bonus is not offensively short lived). Maybe more needs to be done though. Then for all of those bright eyed 65s increasing the AA bonus and how long it lasts does not help them how? Something on the order of a 100% bonus that drops by 25% every 50AAs?
That seems like a decent band-aid that wouldn't open the gulf between high end and low end at all, would allow players to make their 65s useful (essential AAs) much more quickly, and by useful I mean fun for them to play and more likely to fill a spot in your group well.
On a related note the drop rate for spell getting stuff (scrolls/fragments) should be increased. Raising the floor because the ceiling is so incredibly high.