An entire round of Super League fixtures next season will be moved to Cardiff's Millennium Stadium, the RFL have confirmed.
There had been calls in recent days for an announcement to be made over the proposal after Warrington had included a special offer relating to the weekend in their season ticket packages for 2007.
Three games will be played on both the 5th and 6th of May, with more details yet to be confirmed.
The 74,000 capacity stadium held the Challenge Cup Final from 2003 to 2005, and many were disappointed that it could not be used for the 2006 final, eventually held at Twickenham.
"We want to build on both the fans' liking for the venue and the progress rugby league is making in Wales," said RFL executive chairman Richard Lewis.
A one-day pass, entitling spectators to watch three games, will cost from £18 to £30, with discounts for concessions.
A weekend six-game pass will cost from £30 to £45, with concessions again available.
"I know rugby league fans have a high regard for the Millennium Stadium," said Millennium Stadium chief executive Paul Sergeant.
"Their spirit, good humour and energy to enjoy themselves makes the 'Millennium Magic' weekend a mouth watering prospect for all involved."
This weekend sees the final round of matches in Super League XI, with Wakefield facing Castleford in a relegation decider.