With Caribbean in 04, Crown in 06 and Ruby in 08, they appear to be on an every two year cycle for new releases. NCL, Carn, MSC and RCCL seem to be the ones building at an escallated pace. I was glad to see RCI finally building something new for their Celeb brand with Solstice and Equinox. I hope that's not the end of their modernizing plan. I suspect with some of the markets like the Caribbean cooling, there may be fewer orders for new ships in the near future. But then again, with everyone reaching out to new markets worldwide, the sky may be the limit if passengers of other countries take to cruising the way the North American market has over the years.