more Floors is a bad idea. however...

I think a better way to do this is when 4.0 comes out have a New high tier map that opens a new "Aquapolis" in the new zones.

honostly with how popular it is, im 100% certain this will happen

maybe even go back and add an Aquapolis to 2.0 maps. I DONT KNOW. just a thought.

2.0 Piestskin maps >>> ???
3.0 Dragonskin maps >>> Aquapolis
4.0 Somethingskin maps >>> ???