World of Warcraft: The Burning Crusade Editorial

MMORPG.com has published an editorial entitled "The Burning Crusade: What Will You Do?", in which they look at how the World of Warcraft expansion will change the way people play the game. An excerpt to follow:
Blizzard has given us a wonderful preview video. A look at the Blood Elf race and answered some questions about content like Medivh's Tower and Karazhan. I for one am looking forward to the Caverns of Time and the Outlands. A large concern is how the boost in level will affect players who have reached their end-game at level 60. For example, will dungeons like Molten Core and Blackwing Lair become obsolete? Will all the time players spend farming those dungeons for epic items go to waste? With Blizzard using level based loot as rewards for questing, PvP, and factions, will these items even compare to the level seventy gear that we all expect to see? This is a very difficult question to ask and unfortunately Blizzard has not given any straight answers to their players. One post on their forums had said that they will certainly come up with something to balance the loot by the time the expansion is released. Many players remain concerned on how the level seventy content will impact all the time spent playing at level sixty.