A lot of things were theorised and actually attempted for RoE. What we see today is what worked.Re, the globe:
I remember it being theorized back in earlier stages of RoL development that, again, in theory, a show centerpiece for the lagoon could be made up of floats that navigate themselves separate throughout the water and then assemble via magnets or other mechanical means, thus creating a larger centerpiece than the entry infrastructure currently allows for.
Again, I stress, in theory. It was discussed. Who knows if anything came of it.