Electronic Entertainment Expo 2012 have already started. And they had displayed many amazing trailers of the new Mario games set to be released on the Nintendo Wii U and the Nintendo 3DS consoles in the Summer of 2012 and the next New Super Mario Bros. installment for the Wii U would be released before this year's Christmas along with the console.
The new Mario games were New Super Mario Bros. U, New Super Mario Bros. 2, Luigi's Mansion: Dark Moon and Paper Mario: Sticker Star.
On a personal note, I want to say that I'm glad most of the classic stuff have finally made their recent appearance this year, like the Super Leaves, Reznors, Raccoon Mario, Baby Yoshis and stuff. Good thing they are developing a sequel to Luigi's Mansion. I wished New Super Mario Bros. U would take place on Dinosaur Land and that both the game and New Super Mario Bros. 2 will bring back the Koopalings once again. But I never thought that New Super Mario Bros. 2 would be much about golds. But seeing Golden Mario, it was really epic. But it seems that fans likes Raccoon Mario and Fox Luigi more, because of the spectators reactions in the Nintendo Conference 2012. As for Paper Mario: Stickers Star, it's a good thing to have a fourth installment of the series. These games are indeed Legendary and successful!
I wondered if they will make a new Mario & Luigi game or a new Super Mario RPG game. And they did, indeed.
Update (06-07-12): I added the new New Super Mario Bros. 2 promotional artwork and Blue Toad ridding a Red Yoshi who tries to swallow a Super Mushroom. The Wallpaper is larger than before too.
New Super Mario Bros. 2 for the Nintendo 3DS has officially been released!
Update (09-07-12): More sources of New Super Mario Bros. U has been revealed. Seems most likely the Koopalings are set to reappear in the game, reprising their roles as castle bosses. Boom Boom is set to return again, again as the boss of many fortresses similar to Super Mario Bros. 3. Perhaps Pom Pom can reappear?
Paper Mario: Sticker Star is set to be released for the Nintendo 3DS in November 2012! Bowser Jr. is confirmed to appear in it too. Remember, it is his first time appearing in a Paper Mario game!
Paper Mario: Sticker Star for the Nintendo 3DS has been released in November 11th 2012! This mark Bowser Jr., Birdo, Petey Pirahna and Gooper Blooper's debut in the Paper Mario series.
The Nintendo Wii U and New Super Mario Bros. U have finally been released in November 18th 2012! This mark Mario's debut in Wii U!
Luigi's Mansion: Dark Moon for the Nintendo 3DS has been released in March 24th 2013! King Boo returns as the main antagonist, Professor Elvin Gadd returns as well.
I hope they bring back the Kooplings too, we really don't see that much of them. And really looking forward to Luigi's Mansion and Paper Mario! I'm glad the Luigi sequel is going to be much longer than the original!
They brought back the Koopalings in New Super Mario Bros. 2. I don't know about New Super Mario Bros. U, but there are chances that it'll turn out to be more special.
I added them in the picture because they are main characters of the Mario series too. But I don't understand why you also ask me about Yoshi being in this image. He's always been with Mario in the Super Mario series and he's also going to appear in New Super Mario Bros. U. So, he would be added in this pic.
And really looking forward to Luigi's Mansion and Paper Mario!