I finally hit level 58 and forced myself not to cheer when I realized I could leave the old world quests behind. I made my way to Undercity and cleared my bags, leaving a few essential items: My trusty Mining Pick, a few potions and my hearthstone. Then I happily cleared out my quest log leaving a blank page ready for Outland. Finally I made sure all my professions were ready (300+) and wasted too much gold getting the last few points for my Jewelcrafting. I was now ready to head through the Dark Portal!
Outland awaits! A magical world of strange looking quest reward gear, demons and flying mounts.
Extra note: Don't forget you can now use a portal from any major city to teleport directly to the Dark Portal. You don't need to actually travel to the Blasted Lands anymore.