The next two World Cups will each feature only 10 teams, dealing a blow to associate nations such as Ireland.
The recently completed competition included 14 sides but the International Cricket Council executive board had made their intentions clear last October to cut that by four for the 2015 and 2019 events.
There was opposition from associate nations, who felt their likely exclusion would hinder development, and the cause took on new momentum when Ireland defeated England in the group stages.
The executive board discussed the issue again at a scheduled meeting in Mumbai on Monday, with the possibility of a 12-team tournament under consideration.
But instead the board members decided to affirm their previous decision, with only the full member nations invited to the next World Cup before a qualification process is opened ahead of 2019.
A statement following the meeting read: "The executive board confirmed their decision, made in October 2010, that the ICC Cricket World Cup 2015 in Australia and New Zealand and the ICC Cricket World Cup in England in 2019 will be a 10-team event.
"The board agreed that the 2015 World Cup will comprise the existing 10 full members, however, they gave notice to all full members that participation in the 2019 ICC Cricket World Cup will be determined on the basis of qualification.
"It was also agreed that post the ICC Cricket World Cup 2019 there will be promotion and relegation introduced in the ODI League."
The board also congratulated 2011 co-hosts India, Sri Lanka and Bangladesh on a successful World Cup, hailing the quality of cricket on show and the uptake of tickets and declaring the tournament "an outstanding financial success".
"The tournament reinforced the attraction of 50-over cricket and showed the enthusiasm and excitement generated by nation-versus-nation cricket," said ICC president Sharad Pawar.
"There is no doubt that this event has been a great advertisement for ODI cricket. I would like to congratulate both the Indian team and the Sri Lankan
team for a befitting final match at Wankhede Stadium, Mumbai which was played in the best of spirits and provided great entertainment to millions following the game the world over."
A number of other topics were debated in Mumbai, with an agreement passed to donate one million US dollars (£619,735) to New Zealand Cricket towards rebuilding their offices following the earthquake which hit Christchurch in February.
Additionally, it was confirmed that the workings of the anti-corruption unit were to be reviewed after a year in which spot-fixing has loomed large on the horizon.
The ICC statement continued: "An internationally renowned company has been appointed to review the operations of the ICC Anti Corruption and Security Unit (ACSU) as part of the learnings following the Pakistan spot-fixing allegations.
"Sir Ronnie Flanagan, the ACSU chairman, reported that the initial recommendations following this review will be presented to the board in June."