Flash news: A new poster for the 8th Movie, “Mew and the Wave Guiding Hero – Rukario” has been revealed; click here to view it. Note their clothes and the “wand” Ash holds.
I also uploaded the official Ken Sugimori artwork as promised; you can download the artwotk for all 386 Pokémon plus the additional Deoxys forms in our downloads page.
Poster source: http://cynthia.bne.jp/