The main problem with cw is only top 8 get rewards and the rest only tickets. Take away the 2000 tickets for signing up (takes outs out peoples alts who just sign up to farm).
Then the top 512 get the 2000 tickets and then increase rewards for each stage they make it. The top people deserve all the rewards they get now don't want to take anything from them. But it would make the rest more competitive for the ones who know they won't ever make it in the top 8. Yes people will still get to bet who don't make top 512 but make it impossible for the ones with 50 alts to bet on all of them. I know the top 8 don't change very much unless someone gets a hard matchup early on. Other knockout stages switch people more often.