I have to disagree with you, I hope they don't move Ahab's Haunt here as well. Bellisseria will always stay the same, not changing the landscape, but that's what makes SL so attractive for me. The creativity of the users. You don't see much of that in Bellisseria, because the creativity there is only limited to your own four walls, which might be good for some people.
For me this is by far not enough. There is also a grid outside of Bellisseria and premium users live there as well. But even if you are not premium, you are not a worse person. In 1024m I would feel locked up, even if it might be the navel of the world for you.
The sailing area around the Blake Sea is by far bigger than Bellisseria and for sailors and pilots much more attractive and historically grown. I don't think you have to break it to keep the Bellissarians happy and to keep them happy.