Blizzard has announced that today’s patch will include a Skip to the Frostwyrm Lair in Naxxramas, allowing players to go directly to Sapphiron and Kel’Thuzad inside Naxxramas.
Yes. Today’s patch includes the Orb of Naxxramas just inside the entrance to Naxxramas. You may use it to teleport directly to Frostwyrm Lair.The Immortal and Undying achievements will still require you to clear the entire raid, without any deaths during any boss encounters, within a single lockout.