I'm glad you mentioned that, since on more than one occasion in the past I have compared Holiday Island to Nintendo's Endless Ocean, but with busty babes and adult/lewd content instead of a family-friendly game with fish. I personally see the appeal of the Endless Island approach, but I also recognize it's inherent limitations and challenges.
Indeed. Many of the environment assets currently used in Holiday Island are "Genesis 2 era" (SKU 20000 series) and "early Genesis 3 era" (SKU 30000 series) environment assets, or Poser equivalents from the same time period (I know that the Lab, Yacht, and Photo Studio assets are newer (SKU 40000-50000 series), but still Genesis 3 era). Transiting to a new main venue (sequel game?) would likely facilitate the use of newer, more detailed and feature-rich Genesis 8-9 era environment assets (SKU 60000-90000 series). Just speculation on my part, of course.