Maria,
I'm not holding my breath. The RCCL folks that I talked to during cruise3sixty were unanimous in "guessing" that we'll start getting info AFTER Independence of the Seas launches in May ... so probably late May or early June.
One of the biggest issues is that they cannot take reservations in their system without a ship name ... and the ship hasn't been named yet ... the finalists in the naming contest won't even be all announced until 4/18/2008. So I think it's definitely safe to say that we won't have dates, itineraries, prices, or any other details before the end of April.