Next year's World Cup in Japan could be the last to feature 20 teams, as the governing body looks to expand its horizons and reach out into new territories.
Rugby is minded to follow football's lead by increasing the number of competing sides at its showpiece event. It could happen as early as France 2023, but almost certainly four years later.
If money and power are considered contributing factors to football's decision to add 16 teams to its roster for 2026, rugby's stated intention is to be more inclusive by opening up to emerging nations.
One of the criticisms levelled at the sport is that it has been a closed shop made up of the old-boy founder members.
There was an increase from 16 to 20 teams in the 1999 tournament hosted by Wales. The final stages of qualification for 2019 feature a repechage event in Marseille in late November when Kenya, Germany (who have taken on former England defence coach Mike Ford), Hong Kong and Canada will battle it out in a round-robin format to see who goes through to Japan. Three of those countries have never qualified for a World Cup.