Except the new information we got from Tyr's correspondence says the Titan's bodies are made at Zereth Ordos. Just like the Eternal's bodies were made at Zereth Mortis. There is a world soul inside them. So contrary to what it seemed, Azeroth one day turning into a titan isn't something that just happens. This makes the war over Azeroth's soul seem drastically more self-interested.
Honestly I hope they go with:
The First Ones are the Pantheon of Life; they build the Zareths to make just the Titans & Eternals, so that life & death would have order. Naaru & Void Lords are naturally occurring creatures. The Seventh Force is "the Dark One" an anti-life entity that travels the multiverse.
It's much more nuanced than:
There's Giant Robots that come in 6 different flavors & they're all playing an intergalactic game of Risk.