Six Nations officials may attend a meeting in Dublin by having an”open mind” because the concept of a Nations Championship hangs in the balance.
World Rugby wants to present a league within an attempt to revamp the calendar.
The new format would require relegation and promotion from the Nations, which has so far been strongly opposed.
However, a source said they would go to next week’s meeting”by having an open mind and also the attention of the match at heart”.
While the Nations has yet to comment, it is understood a range of the home marriages hold reservations about the Nations Championship, with the Scottish and Irish marriages the most sceptical.
English Rugby remains unconvinced, with the Premiership clubs concerned by the plans may contravene the bay area agreement of 20 17, each time a new worldwide calendar was mapped out before 2032 and sources in the Rugby Football Union.
The Premiership clubs won’t attend the summit, but are an essential stakeholder given they possess England players.
England captain Owen Farrell has lent his concerns welfare grounds and also the possible coNFLict with the nightclubs, who would again have to correct the domestic calendar in case the Nations Championship experiences.
“We’ve always had an open mind, however we have questions which need answers,” said an RFU supply.
Italy head coach Conor O’Shea has been the earliest Six Nations figure to openly throw his support behind the strategy.
The Harlequins boss says that the tournament could benefit the worldwide game, although o’Shea’s Italy would be at threat in the six-nations promotion and relegation system.
“It brings that element of competition and it’s really a great way to view progression within the overall game,” he told BBC Radio 4’s Today programme.
“On the face of it think that it’s really a excellent advance and a really exciting idea.”