The former is a Super Famicom sequel to Mario's Picross for the original Game Boy, while the latter is better known here as "The Lost Levels," as it was called in Super Mario All-Stars. Both games have been released on the Japanese Virtual Console but have not seen a release outside of that country in their original forms.
Additionally, one non-Virtual Console game, Harvest Moon: Magical Melody, is also slated for a Wii release. This particular game was released for GameCube in the rest of the world.
The full list of rated, but unannounced and currently unreleased Virtual Console games can be found below.
NES
SNES
Mega Drive
Turbografx
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Originally posted by: Jonnyboy117
Very cool news. I'm not personally interested in SMB2 (Lost Levels) because it's too hard to be fun for me, but this trend is great to see, especially with first-party games.