The Rugby Union's board has reversed its decision last month to have two up, two down promotion relegation for the revamped provincial championship.
The chief executive, Steve Tew, says the decision was subject to the provision of more information and once it was available it's been decided to revert to one up one down.
He says the main reasons was a fair amount of anxiety amongst the provincial unions that a lot of commercial instablity and uncertainty would be created with that many teams in the promotiion-relegation zone.
However Tew says promotion-relegation is still seen as a critical component of the new 10 team Air New Zealand Cup.
And with the NZRU looking for up to two teams to come up to Division One from the Heartland championship, Tew says there have been expresssions of interest from North Otago, South and Mid Canterbury, Wanganui and King Country.