There's also no word from Nintendo of America on an arrival across the coast, so Super Mario Bros. 3 could join The Legend of Zelda: A Link to the Past in the transatlantic waiting room. That said, back in August, the big N announced it was due sometime this year.
One thing we have confirmed with a Nintendo UK representative is the game features multiplayer on both Wii U and 3DS. The Wii U version supports local multiplayer, while the 3DS version uses download play, meaning only one player has to purchase the game for two people to play across two systems. Neither version supports online multiplayer.
On the subject of classic Marios, NoE is running a Nintendo Network promo that can score you a free copy of Game Boy Color remake Super Mario Bros. Deluxe. If you link a Nintendo Network ID before January 31 - which you can now do thanks to the recent system update - you'll receive the free game code sometime in the second half of February.