I think, with all the variations in the games that have been going on, there may be wariness to commit to games that may be very large and (therefore long) and complicated. One of the reasons I declined this game was that I got the impression that it was going to be too demanding for the amount of time I might be able to make available. I have lost track of exactly what is proposed. Even during Nilp's big game I still found a viable market for the original stripped down version of WW. It seems a bit mean to stop the shorter simpler games because huge games can't get filled.
I am never going to be able to commit to a game that might last 3 weeks because of the variable nature of my work and internet access whereas a WWJ game with a maximum of 15 players is possible. Stopping the small games would just stop me playing at all since I would not realistically be able to transfer to the longer senior games.
I don't think it is a simple lack of demand, more that many people want to know what they are letting themselves in for now that one game is seldom on the same format as the last. However the forthcoming Easter break and the imminent exam season may also be factors. I can think of several keen players who may force me to revert to teacher mode if I see them sign up
