What an amazing thing to say.
The fact that it's one of their best quests is the whole reason to update it. VON was originally meant to be played by characters near level cap.
People need to reach the fundamental understanding that endgame is different. You can't simply go to a game designer and tell him to make a quest & items for level X without telling him if the level cap goes beyond X or not.
To help understand this, simply imagine that Turbine had skipped adding VON as part of module 1 and they were building it right now. If VON was a whole new quest chain to be released in mod9, is there any reason they could possibly justify launching it as level 8-10? Of course not.