So, about Zenos... (SPOILERS)

[Garnix]

No he didn't.

With Hydaelyn, Emet, Zodiark, and Hythlodaeus he was very clear.

With Zenos he didn't give a straight answer. He does that when he's trying not to spoil something.

I think he was very clear in his statement.
He said "Zenos stopped breathing, you can see his dead body, right?".
He never said he is dead though
To me it is a very clear way of saying "he is not dead".