This is the right question but at the wrong level. At the pro level, the Olympics and WCs should both be held only once per quadrennial, with high-level area championships (European Champs, etc) and the DL Circuit the main events in odd-numbered years. Cash would be on the line in DL meets, and area champions would earn an automatic qualifier into the next year’s global championship (I also think a team score in the area championships should affect how many qualifying spots a country has for the next year’s global championship). The DL would of course still be run in Oly and WC years, but it would inherently take a backseat to the global championships.
This isn’t for purposes of training, though. It’s to make the sport more compelling. We would have the narrative of a bunch of recently-crowned area champs competing at WCs. We would have more meets with qualifying ramifications, even in off years, where top stars have to butt heads. It seems like this would be the logical next step in Coe’s elevation of the DL Circuit and Continental Tour and coordination of the international calendar. In most other international sports, this sort of alternating area/regional championship (or qualifying tournament) in one year and global championship in the next seems to make sense,