Undercity and Thunder Bluff are accesible. Just use the portlas in Orgrimmar. If you need to come down at The Great Lift, i suggest you take all your equipement and put it in the inventory and just jump , spirit healer is just next to you and you'll get to your corpse in no time and you won;t lose durability either. i Know that in Freewind Post there was a set of nice quests to do for the Horde , but you can find alternatives. As for the Aldor/Scryer Tier in Shattrath you can use flying mounts. That is untill we get a fix for the elevators issue.
Raven 70 Mage