The Future of World Sizes

I see that sometimes SimsGurus are posting on forum so maybe it is time to ask them about worlds because every day someone is creating new topic about this. As i said a lot of times the most of worlds are too small for me. Especially Del Sol Valley should be updated as soon as possible because this world is unplayable. Just one free lot for superstar, expensive starter and one too huge empty lot which not match with small fake houses around.

I want to belive that @SimGuruNinja for example will explain us why are the worlds so small.