So this came up in a game I was playing today. I had an Athreos, God of Passage with enough devotion that it was a creature, and I cast another (it makes sense, I swear). I chose to sacrifice the newcomer.
This will trigger the remaining Athreos and I will return the dead god to my hand unless my opponent pays three, correct? Athreos was a creature when it died, and remained so after because its type-setting ability only applies on the battlefield.