There are two body styles for the 2015 auris. I think Europe only got the base model kit. If you look at the Japan or Australia models there are 2 body kits. The base (like Europe) and the sportier (like the iM).
When looking for body kits, I would look to the JP yahoo auctions or something along those lines. Does anybody know what the model code is/will be? For example, the first gen xB (the bB in Japan) had a model code of ncp30. When searching on JPY I would put that in and find good stuff that would mostly fit my xB. You will also need to find a broker (someone in Japan willing to ship you the product after winning the auction for a fee) in order to get your stuff.
If this confuses you, I would stay away. If not, then I would look at clubxb.com as there is a thread on there about one of the guys willing to be your broker. JDMISME, I think is his name on that site.