Twitter account that the up-coming eShop release of Pokémon Gold and Pokémon Silver will also have a physical release in Europe.
The two games are set to release on the 3DS' eShop on the 22nd of September and these physical editions will release on the same day. They come with a download code for either Pokémon Gold or Pokémon Silver (depending on which version you purchase), but otherwise it has yet to be revealed if there are any other extras included. It's also unknown how much these editions may cost compared to the eShop release.
It's worth keeping in mind that packed versions being released in Japan include stickers, a poster and a cartridge shaped-magnet, so there is every chance we'll have something nice in our editions too.