I for one, would welcome the end of the qualifying rounds. In my opinion, this aspect of the competition has ruined the podium chances of some of the best skaters. If one of the qualifying rounds contains the top three skaters in the world, while the other qualifying round contains none of the top skaters, the skater who wins the "other" round will have a jump start (no pun intended) on the skaters in the first round.
Certainly, I can understand that it would be difficult to judge a World singles event that contained, say, sixty skaters, and the qualifying round does serve the purpose of weeding down the competition to a more management number of skaters.
However, it just seems obvious to me that a certain standard must be obtained by all skaters who compete at senior worlds. For the women, all competitiors must have a consistent triple toe, flip, and salchow. If a female skater doesn't have those jumps (at least) she isn't a senior World-level competitior, IMHO.
It isn't a mystery that some skaters show up at Worlds with an obviously weak arsenal of jumps, yet they are at Worlds because their country is an ISU member and is entitled to send one representative to Worlds. While it's great to give up and coming skaters the chance to compete internationally, the Worlds is hardly the proper place to send junior-level skaters. The Grand Prix series and other competitions are appropriate vehicles to give these developing skaters the opportunity to compete in front of international judges.