"AA Boost - Boost two level 90 characters to 280 Alternate Advancement points and begin the journey to levels 91 through 95." Does the above mean : if i buy the xpack and level my chars to 90 and at level 90 you automaticly get the 280 AA points?
If you buy the expansion, in the /claim window will be 2 AA boost baubles. You /claim one of them on the level 90 character you wish to boost up to 280
Yes, that's what it means. It will not give you 280 AA... it will raise you to 280 AA. Meaning if you have 10 AA currently, it will add 270 and raise you to 280. If you have 279 AA right now, it will give you one, raising you to 280.