Can't agree with that (though I can see why you would want it!)
Oceania 1, Africa 1, Europe 1, Pan America 1 kind of sells itself
Hosts is obvious.
I hesitate at World Champs, only because you might have a situation were RSA are world champs, and then you're talking Zimbabwe having a better shot than Pakistan or New Zealand, and that's not realistic.
That no longer there world champ spot now goes to Asia to recognise it has 5 'Full members' - so Asia 1+2, Host, Oceania 1, Africa 1, Europe 1, Pan American 1 leaves one last qualifier(or 2 if host is Aus, Ind etc) - which would be a MAJOR tournament in itself
It's a 10 teamer - PanAmerica 2+3, Europe 2 + 3, Africa 2+3, Oceania 2+3, Asia 3 + 4
Effectively this might boil down to Sri Lanka + Bangladesh + Trinidad + New Zealand + Guyana + PNG + Ireland + Netherlands + Zimbabwe + Namibia...
For a golden ticket to the Olympics, that's a qualifier sells itself. If we start with 2 groups of 5, top 6 go to QF (top of group teams get bye to semi, #2 and #3 to QF)
You could very well have a final knock out of Trinidad v Bangladesh, winner to play New Zealand, and Zimbabwe v Ireland, winner to play Sri Lanka, winner takes all. I'd say that might sell in and of itself.