There was only one new trailer in the entire Level 4 presentation and it was for a game that as far as I can tell isn’t going to get ported to any english speaking countries. Inazuma 11 4 is going to be on 3DS and it looks really cool, too bad I will never get to play it. Other than that there were repeat trailers for Layton, Layton X Pheonix Wright, Fantasy Life, Time Travelers. Look at all them anime cutscenes.
(Tiny Cartridge and Youtube)
Inazuma 11 4
Professor Layton and The Mask of Miracle
Professor Layton VS Pheonix Wright