That's all I heard too. Well, it's been a couple of updates. I have a feeling it's just going to be a surprise with one of the updates in the future. I hope it's before the next "feature drop" because they said those are quarterly. That would be another 3 months at least.
Yeah face unlock probably scanning face details and features , not eyes . The future update should be where it detect eyes like Iris scanner I'm guessing.