I'm certainly hoping avatar costumes come back into fashion here in Australia too: I finished my Zuko earlier in the year (and am extremely happy with it - my first costume!), but now I'm making a Toph, Azula, Katara and Aang for my mum, Sister and her two children for a convention in June. Thank goodness there isn't too much detail in these avatar costumes, but the edging will still test my patience! Can't wait to see my 7 year old nephew as Aang: he'll be so cute. And looking forward to seeing some pics of everyone new Korra costumes.
2013 cons: GC Supanova (Noel Kreiss - Final Fantasy 13-2 - National Comp, Zuko - Avatar), Smash or Sydney Animania (??), Bris Supanova (??, Fujin - FFVIII)