WoW: Classic is still in beta stage, so this is still unclear what final shape will the game have upon release. If any of the information above appears to be out of date or inaccurate we will try to update it as soon as possible. We will also appreciate your help with catching possible mistakes and fixing this guide for other players. If you have any feedback on it, please leave it in the comments below.
The Horde levels 50-60 guide has been rewritten and revamped.  My 1-60 Horde leveling guide is now completely updated for the 1.12 Drums of War patch.  As you can see it is about 15% larger than the 40-50 guide (single largest guide page yet).  There is also a lot of route changes.  I moved the entire Silithus section from level 55 to level 58, which allowed me to include a lot more quests for that zone.  There is also a lot of other improvement to the route, including adding a lot more quests into the guide, mostly from Moonglade, Silithus and Eastern Plaguelands.  This will make the final level 59 grind much shorter.

Grind - During the first few weeks after Classic's launch, making good money out of the Auction House alone will not be possible (items will be dirt cheap because no one will have Gold to spare). This means that you will be forced to Grind Mobs if you want to afford a mount at level 40, not to say level 60. Picking a right Grinding spot is very important, as the Gold/Hour differences between similar level spots can be huge. We will provide you with some worthwhile grinding locations in a further section of this Guide.

There are 5 Dreaming whelps and 7 adolescent whelps spawns, They drop the small flame sack which sells for a decent amount at auction house or can be used to make fire protection potions. The sacks have around 10% chance to drop and it's one of the main reasons you want to grind here. On top of this you'll get lots of grey items, green and blues with a higher chance than your average mob. If you are not aware yet, dragonkins have the best loot table in the game while having less HP and armor... making them easier to kill, assuming you're not fighting elites...