http://www.worldofraids.com/news/823.html * Everyone will get Cataclysm's revamp of the classic zones, regardless of what expansion(s) you own or don't own.
* It's not planned to allow players to revisit the original classic zones, but it may be something they do to expand the Caverns of Time.
* The main reason for this revamp is Blizzard felt, while leveling alts, that the classic game simply didn't meet the new standards set by The Burning Crusade and Wrath of the Lich King for quest leveling.
* There will be a "giant" world event, lasting for about a month, some time after 3.3 and Arthas is defeated that will begin to shape the coming cataclysm. * Most classic achievements will be converted to Feats of Strength since there are substantial changes to almost every area in the classic game. New achievements will be introduced focused on the Cataclysm changes.
* The goal behind the new races were to give Alliance a "bestial" race and Horde something more gnomish.
* Faction changes will cost money and be something similar to a server transfer or name change, meaning there will no doubt be a cooldown of some sort attached to it.
* Many of the starting areas will be modified; Valley of Trials in Durotar will be completely different, for example. Elwynn Forest is one area where there won't be many changes, though, as Blizzard is mostly happy with it. You can probably expect a flight path added to Eastvale Logging Camp.
* Most of the quests that require looting items will probably have the amount you need to loot reduced.
* Camp Taurajo in the Barrens has been burned down and the Alliance now occupy the area.
* Cory Stockton was responsible for the mount changes, and it's something they primarily did to help make the early part of the game feel less grindy and slow, since later on things speed up quite a bit due to faster land and and eventually flying mounts.