Wales' four rugby regions have backed the Anglo-French plan for a revamped European competition from next season.
Cardiff Blues, Ospreys, Scarlets and Newport Gwent Dragons released a statement saying some new tournament details need finalising, but it's clear there are a number of significant advantages to the new competitions.
Europe's top teams currently compete in the Heineken Cup or second-tier Amlin Challenge Cup.
England's Aviva Premiership clubs and their French Top 14 counterparts announced in June last year their intention to leave the competition organised by European Rugby Cup Ltd.
They did so in the belief that ERC has not made the most of commercial opportunities and that qualification for Europe is skewed in favour of Celtic and Italian teams.
The English and French also believe that tournament funds have not been fairly distributed.
