South Africa beat England to win the 2007 World Cup in France
England have still not decided whether to launch a joint bid for the 2015 World Cup or go it alone without the Celtic nations, BBC Sport understands.
However, it is believed that meetings are in the process of being planned to exchange views on the possibility of staging a joint bid.
On Wednesday, England, Scotland, Ireland and Wales all confirmed their interest in hosting the 2015 World Cup.
And Wales and Scotland said they were considering bids involving England.
A record eight countries met the 30 September deadline to apply to host the 2015 competition and they now have until May 2009 to submit final bids.
The Welsh Rugby Union says it has made one bid with the Rugby Football Union - England's governing body - and a separate bid with the other home nations for the 2015 showpiece.
Scottish Rugby Union chief executive Gordon McKie said a bid involving England, Scotland, Ireland and Wales would be "a compelling proposition for world rugby".
IRB chairman Bernard Lapasset said the number of countries interested in hosting the competition reflected "the global attraction of the Rugby World Cup".
He added: "It also reflects the significant economic benefits that accompany the hosting of a tournament that has grown in stature and prominence as a global event.
"Rugby World Cup is now firmly established as one of the world's top five sporting events."
Ireland, Scotland and Wales have also confirmed their intention to bid for the 2019 World Cup.
The hosts for both tournaments will be announced by the International Rugby Board on 28 July, 2009.
In addition to the four home nations, Italy, South Africa, Australia and Japan have also confirmed they will bid for the 2015 competition.
South Africa beat England to win the 2007 World Cup, which was held in France, while the 2011 event will take place in New Zealand.