Wildstar does swimming pretty well. I don't play there any more but I remember the pleasant thrill when I realized the rivers and streams had currents, and diving down, and around, underwater exploring and questing. It was coolness. And a great use of my swimwear

But... what we really need... is AERIAL COMBAT!

Fat Chocobos diving out of the sun, PEW PEW PEW, dawn patrol, and your Midgardsormr going down in flames!