These two games were announced to be coming on the eshop shop via 3D Classics Section:
The Original Kid Icarus (NES): There is a mention that a campaign being help in Japan says it will be free, But its most likely that other regions will have to pay.
Kirby's Adventure (NES): Nintendo UK has announced that Kirby’s Adventure will be coming the eShop as a 3D Classic."3D Classics Kirby’s Adventure: one of the NES’ greatest treasures returns as part of the 3D Classics series. Be there when Dream Land awakes for the first time in stunning 3D. Available 17th November 2011 for €6"