As a special advertisement previously announced, a special Eevee 3DS XL is just around the corner. An image of a leaflet advertising the console has been posted online. It features a striped design on the top shell which matches Eevees colour palette. The full official announcement of the console is set yo be made tomorrow where higher quality images of the actual console itself will hopefully be shown.
[UPD]: The Eevee XL has now been fully officially revealed. The console will be available from 22nd of June in Pokémon Centers across Japan. However, to get your hands on this Japan you must enter yourself into a special lottery draw. If you are you chosen you are able to purchase the 3DS for 18,900 yen.