What if they skimmed off the top 16 and made an "Ultimate CW". They can play against themselves. Every time someone wins a crown, they can move to Ultimate CW.
The fights for the ultimate CW wouldn't be able to run the same time as the normal cw unless the 16 finalists of the normal cw are 16 of the people who werer part of a group of 32 people. However, this method is just going to complicate things badly!