Think the main basic problem at the moment is where the module is aimed at rather than the contents of it. It is constructed as a team based module but with very few people being on-line there is no incentive for players to keep returning. The game is very difficult/tedious for newly created characters with only very limited areas to explore before getting splatted, as will generally happen with a solo player in a multiplayer world. This would dis-hearten most players before they get to explore much past the western road, therefore are unlikely to return. The main aim of the module should perhaps be to encourage players to keep coming back by offering a series of 'one-hit' one player missions. This could then not be exploited (as they can only be done once) and would allow players to be eased into the world they should then call home.
Another point that puzzled me was the location of the new tomb for newly created spell-casters. If it is that single room in the graveyard of the Ascension then I doubt that would keep many people entertained for long. Killing the 3-4 zombies and Shadow fiend does not really qualify as a training area for spell-casters (even if the reward is pretty useful!).
I am not trying to slate the module, because it is quite entertaining once your character is set in the world, BUT it takes a lot of patience to get to that position if you tend to be on-line alone.
Not sure what to suggest in the way of remedies other than to expand some of the existing areas to accommodate low-level players and perhaps offer some single player quests to get people interested in the module.
Otherwise keep up the great work and I'm sorry if I sounded too negative in this post.