Remember the 5.1.0 system update for the Wii U that added Suica support? Well the New 3DS is getting the same treatment by adding support for Suica cards in the eShop by December 9th. Be prepared for the imminent System Update to add support for this.
Sources:
http://www.neogaf.com/forum/showthread.php?t=944857
http://www.nintendo.co.jp/corporate/release/2014/141204.html?link=rss
Sources:
http://www.neogaf.com/forum/showthread.php?t=944857
http://www.nintendo.co.jp/corporate/release/2014/141204.html?link=rss