Blah blah blah
Wilderness and mountains.
the island of Letos
None at all. He was a Roman god with no Greek equivalent.
Poseidon
He was the ancient Greek God of the sea. his domain was the Oceans
When a Greek god or goddess is "god of it" it is not their job, it is their nature and domain: they can not do that "right" or "wrong".
Atlantis was the domain of Poseidon, the god of the seas, storms and earthquakes.
He is alive and well in mythology messenger. thieves. medicine.
Hades, or more correctly the domain of Hades the god of the underworld
He was the son of Titans. His job was to carry the heavens on his shoulders.
Who was the Greek or Roman god of the future?
Artemis would know that there is nothing in Greek myth that a Greek god controlled that a Greek goddess did not have had a domain over as well.