Yeah great idea... Let's make an MMO (Massively Multiplayer Online) rpg play more like a single player rpg. That will win back the thousands of MMO players that left the game.
How does the playable at any level work though? Does it dynamically scale your character to a certain level? Or are you playing this content in your own phase (thus not interacting with other players)? Can players of vastly different levels play together and level effectively?