Ehh I will just post this comment.
Bringing back old Player worlds will not bring back its glory days or what you liked about it. They were what they were because of the community that existed there; levels and quest are only a small part of a Playerworld. I have seen some excellent Player worlds online as far as levels and quests and things to offer and yet they failed ; eventually were taken down. Why? Because no one played there, there was no community to sustain it and it died. A playerworld is what it is by the way it is viewed and played by its players. These PWs you have listed, even if you put the original levels up would prolly fail because the original people are not there anymore. Some have left Graal and moved on, some will be disappointed because the "old feel" of that PW is gone and will never be the same as it was.
It is like us trying to relive our childhood and the awe and newness of life as we saw it in our infant eyes. This my friends only happens once in life and it is great when we experience it and yet it is the same with these old PWs, the newness is gone and the thrill of exploring it with our online friends is also a thing of the past, they were great when they were here exploring it as new with our friends. We cannot recapture the past by putting them up again but only remember the way it was (When Graal was new and exciting) and move on to new and better things and communities. We just have to make the best of what we now have or the new things to come, the same we have to do in real life, this may be sad but true.