This sounds really good, I am still wondering about some things though
You say "delay of posting bonus" but I see no mention of whether the automatic +1 XP will be assigned when someone votes ++ or whether it is being scrapped altogether in favour of the new voting system.
Will the current value of NORM be available (easily)
Are current XP levels going to be adjusted, it would be quite hard to implement something that reflects the dynamically variable nature of the new ++ (I'm in favour of some sort of regrading if it can be shown to be fair & equitable)