Do you think they'd ever add another water island?

One for pokemon that live in the water? Maybe a bunch of docks or something? I was looking up "snake" pokemon while hoping for a lunar New Year event and saw Milotic. I thought, "how would a fish sleep on land?" And that's when I realized there's no other fish pokemon probably for that exact reason.

I think it's a nice thought. There's a fair amount of other pokemon that hang out on the waters surface and around the water that aren't water type so I don't think the island would be limited in pokemon.

Maybe Snorlax is just sleeping on a boat connected to the docks? The bottom of a little lighthouse off to the side or something. The only thing I can think might be complicated? is pokemon pathing, so they're not just hovering over water.