Khuutra on 30 June 2008
Majora's Mask was announced within a year of the release of Ocarina of Time.
Wind Waker, with the transition to the next console, was announced two years after Majora's Mask.
Twilight Princess was announced a year after Wind Waker.
It has now been eighteen months since the release of Twilight Princess.
It's not definite by any means, but I wouldn't bet against it.
