In a post on the Wii U's MiiVerse, Zelda producer Eiji Aonuma said that Oracle of Ages and Seasons should be coming to non-Japanese territories before the Summer starts.

The link system that allowed you to share content and unlock secrets between the two games will survive the port to 3DS since it was based on entering codes between the two games. Since sharing the content wasn't a product of hardware or linking cables, it probably wasn't too difficult to bring over.

You can check out Aonuma's posts on the MiiVerse by checking out the photo gallery below.