Endgame is only dead for those that have downed 4/4 HM EC each week and continue to do so. Many yearn for more challenges in Nightmare mode, but we are left grasping at straws right now while the PvE raiders start dwindling in numbers as they move on to other games.
A simple update from the Dev team would go a LONG way in keeping people around and interested in the game. Communication is key, because I know several guilds that are just chompin' at the bit to see some real progression content again.
As a former raider in another game, I can sympathize with you. But the next MMO company to figure out how to beat Raiding fatigue and pump out content quickly enough will be the first.