Finally, we have some info from Nintendo on Yoshi's New Island, the upcoming Yoshi starring platformer for the Nintendo 3DS. (Which is now announced for release March 14th, 2014)
"Embark on a magical journey with Baby Mario and the Yoshi clan in a quest to find Baby Luigi"
OK so by the sounds of that, this is, in its base story at least going to be very similar to it's Super Mario World 2: Yoshi's Island predecessor way back from the SNES days. But this has been a long time in the making, so I truly don't believe this will simply be a modernised version of its former title.
Check out our Gallery of Artwork from Yoshi's New Island (3DS)