What's this nonsense about "2 specials" instead of a proper series? Several people have mentioned this, but where are they getting it from? Regardless, it's wrong, as ep 2 ended with a preview of next week's episode. Which is a relief.
No, they are not wrong. These episodes were written as two 2 hour specials as opposed to a "full" 6 or 8 hour series.
So we'll be getting 4 episodes and that's it.