The Welsh Rugby Union's chief executive says the uncertainty over competitions for next season is "close to resolution".
Roger Lewis has told ITV News a meeting is to be held tomorrow with colleagues from France, Ireland and England to "thrash out" details of a new European competition.
"Qualification through Europe will be through the Pro12. So the two competitions - the Pro12 and a European Cup competition - looks close to resolution," he added.
The subject has been one element of an ongoing dispute between the Welsh Rugby Union and the four regional teams, with additional concerns over funding and player control.
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