Here's some suggestions for new 70's, hope these are useful.
I'm 70! What now?
There is more than ever to do at 70. Some options:
QuestingRunning instances to improve gear and get keyed for Heroic instancesGetting attuned for raid instancesRunning Heroic instances for even better gearRunning raid instancesWorking towards a flying mount, and then an epic flying mountExploring the world on your flying mountArenaGetting and crafting rare recipe dropsWorking on repTrying out old instances
Questing
There are so many quests in Outland that it's almost certain you haven't finished all of them. Travel to Netherstorm or Shadowmoon Valley if you haven't already and collect some new quests. A lot of these quests are quite fun, and they give good rewards - either in gear or gold.
Instances:
The level 70, 5-man dungeons are:
Shattered Halls in Hellfire CitadelSteamvaults in Coilfang ReservoirShadow Labs in AuchindounBlack Morass (The Dark Portal) in Caverns of TimeMechanar in Tempest KeepBotanica in Tempest KeepArcatraz in Tempest Keep
If you're interested in raiding, the usual progression is:
Karazhan in Deadwind Pass - 10-manGruul's Lair in Blade's Edge - 25 manMagtheridon's Lair in Hellfire Citadel - 25 manSerpentshrine Cavern in Coilfang Reservoir - 25 manThe Eye in Tempest Keep - 25 manBattle for Mount Hyjal in Caverns of Time - 25 manBlack Temple in Shadowmoon Valley - 25 man
Attunements
Karazhan has an attunement process, involving doing some quests in Deadwind Pass, then running Shadow Labs, Steamvaults, and Arcatraz for key fragments, and doing the Black Morass instance.
Battle for Mount Hyjal requires you to have completed a quest in Serpentshrine Cavern and the Eye to get attuned.
The Black Temple also has an attunement process including a quest series in Shadowmoon Valley and finishing quests and/or killing bosses in Serpentshrine Cavern, The Eye, and Hyjal.
Heroics
If you're not in a raiding guild, or don't want to raid, you can still run 5-man instances on Heroic mode. Heroic dungeons are equivalent in difficulty and drop quality to Karazhan, but it's much easier to find a group for them, and they're more accessible to players without an endgame guild. To enter heroic dungeons, you need the Heroic key for that group of instances as listed below, which in turns requires Revered reputation with the respective faction listed.
Hellfire Citadel: Requires Honor Hold/Thrallmar rep
Running Ramparts and Blood Furnace to Honored. Past Honored, either saving quests until you're 70, or running Shattered Halls
Coilfang Reservoir: Requires Cenarion Expedition rep
Unidentified Plant Parts and pre-70 instances(to honored), quests, Coilfang Armaments, and running Steamvaults
Auchindoun: Requires Lower City rep
Arrakoa feathers and Auchenai Crypts(to honored), quests, running Shadow Labs past honored
Tempest Keep: Requires Sha'tar rep
Aldor/Scryer rep (to honored), running Tempest Keep regular instances, some quests
Caverns of Time: Requires Keepers of Time rep
Quests involving CoT, running CoT instances
Flying
At 70 you can buy a flying mount and riding ability. If you don't have enough money, a few days of questing/grinding should do it. Flying also helps in gathering skills, and is just plain fun. You can also work on obtaining the riding ability needed for your epic flyer.
Exploring
Once you can fly, there are several places that are newly available to you - check out all the floating islands over Nagrand and the broken off pieces of Hellfire Peninsula, Shadowmoon Valley, and Netherstorm.
Have you been to the Warden's Cage? Have you seen Doom Lord Kazzak? Now's your chance. Just watch out for your cross-faction cities - fly over them and you're likely to get shot down...
Epic mounts
Netherwhelp - Netherwing rep
Nether Ray - Sha'tari Skyguard rep
Talbuk - Kurenai/Mag'har rep (this is a ground mount, so you only need 150 riding ability)
Arena
Arena is a great PvP option that doesn't require loads of time. Make a 2, 3 or 5 person team and do at least 10 arena matches weekly. You gain points that you can use to buy top-quality gear.
Crafting
There are a lot of great crafting recipes that you can work on obtaining, either through rep, instances, or the specific mobs they drop off of (See the Trade Skills forum for more info). A lot of high-level recipes require drops from high-level or heroic instances as well.
Work on Reputation
Reputation gives many nice rewards, such as better gear, crafting recipes, enchants, and mounts. Plus, you can work on rep while doing other things, like running instances, questing, gathering, or just grinding.
Factions (in addition to all the existing factions pre-Burning Crusade):
Aldor/Scryer
Mark of Kil'Jaeden/Firewing Signet to Honored
Mark of Sargeras/Sunfury Signet to Exalted
Fel Armament/Arcane Tome to Exalted (also gives mats for shoulder enchants)
Sha'tar - see above
Honor Hold/Thrallmar - see above
Cenarion Expedition - see above
Sporeggar - killing bog lords in Zangarmarsh, gathering spores to honored/hibiscus past honored
Lower City - see above
Consortium - Quests, warbeads, Mana-Tombs to honored (Heroic past honored)
Kurenai/Mag'har - Quests, warbeads
Keepers of Time - Run Old Hillsbrad and Black Morass
Ashtongue Deathsworn - quests
Ogri'la - quests, daily bombing quest
Sha'tari Skyguard - quests, daily bombing quest, daily escort quest
Netherwing - quests up to neutral, then daily quests (requires 300 riding ability)
Violet Eye - questline for Karazhan attunement, Karazhan mobs and quests
Scale of the Sands - Hyjal attunement quest, and then running Hyjal
Old instances
A lot of people think that the level 60 instances are now obsolete. But if you haven't finished all those Scholo quests, or downed the Baron in 45 minutes, you can do it now much more easily than you could at 60. These instances are still fun, and with level 70's, you can be much more free with your party makeup, or even trying them with 2 or 3 level 70's instead of 5 level 60's. Heck, if you like, try soloing them! You may not be running them for uber gear, but you can still get a lot out of these instances in terms of fun and practicing party mechanics with guildies or friends.