Matchroom dropped the ball with this one. Predator seized the advantage.
Problem is, the Predator matches are too long. There is still an opening for Matchroom with a shorter, tighter format.
I do think a reimagined WNT World Cup would need a losers round or a format in which one loss doesn't mean a team is out.
In fact, copy from the actual World Cup. Invite 32 teams per usual. Segment into quads of four. Each team in a quad plays each other once. The top two teams in each group advance to a knockout stage of 16 teams in single elimination.
One point for a win in group stage, none for a loss. In case of ties, won-loss percentage in racks is the top tie breaker.
A 16-team invitational, with quads in the first stage, would also work if MR wanted a shorter event. Top 2 in each quad get to the final 8 for the single elim stage.