The concept of a stargate that I would want is one where ships can pass through them. Since Airships are probably going to be made of blocks, my guess is it won’t technically be possible with the game engine. Mobs don’t run through portals and that’s my assumption as to why an Airship wouldn’t be able to, even though I think it’s something that should change in the distant future.
Complete guesses though on how it would work and be implemented. I just know I want a fleet of airships. So… 