Did you watch it just then too? I'm from australia as well :) I don't know, i wanna know badly too! Us aussies want merlin! I want to scream right now, why can't arthur know :( And poor merlin, his father died -.-
I'm from Down Under, too, and I reckon it will come out late May or early June next year, like this year and the last. So you're going to have to wait a long time for it, unless you wanna watch it on the internet. I made my friend do that and now she loves it! Anyways, awesome shows are worth the wait.