Thats not very detailed lol - and Atomos sucking the aether from the crystals.. it could be changed without a retcon.

If they ever do plan on adding airship (sky expansion) I really hope aethergates gets bumped up to a end game reward or gets turned into a flight path system.

"Want to ride in my airship???"
"Nah, Ill wait for you at location - I'm going to flash there".

-_-;