WOW - Accelerated experience 1-60 next patch? : World of Warcraft General Discussions

The leveling curve and quest experience decrease/increase (respectively) will not be in the 2.2 patch, which is technically the next patch. If you're asking will it be in the patch after that, we haven't announced exactly when the feature will be included just yet. The increase stops at 60 for both reduction in XP required for each level, and quest XP increases, so if your alt is 60 then you should just level them now. I don't believe a percentage increase has been stated. Reputation has not been reduced relative to level difference since (I think) patch 2.0, and that applies to all reputation gains anywhere, not just starting areas. I don't think hunter pets will be an issue either. There's no change to loot or quest rewards. I know some classes have higher training costs than others at some level gains, and if it looks like it's an issue we can make adjustments to those prices.

Check it out for yourself in this posting from a blizzard staff member Drysc

http://forums.worldofwarcraft.com/threa ... ageNo=1#19