User blog comment:Bowser & Jr./An Announcement from Sakurai... And Isabelle from Animal Crossing: New Leaf/@comment-26124383-20140404231637

Yay! I expect one or two new characters (my guess is one newcomer, one or two obvious veterans like Yoshi or something), maybe a bit more footage of actual battles with new characters, and maybe even some new mode announcements.

My wishlisht? My last wish is entirely wishful thinking and probably will never happen, but my god, it would be amazing.
 * Palutena Reveal (I think her and Chrom are the most likely for this month)
 * Yoshi Reveal (Either him or Captain Falcon)
 * Sakurai explaining how the new characters will work similar to the Developer Direct from E3 last year.
 * Just some regular gameplay, showing some stages in motion or new items, especially for the 3DS version.
 * A hint at the release date (i.e. Q3 2014 for Wii U version, Q4 for 2014 for 3DS version).
 * A free beta Demo coming to Wii U AND 3DS eShops releasing during E3 featuring four popular veterans (probably Mario, Link, Kirby, and Pit) and three new stages (probably Battlefield, Skyloft, and Boxing Ring for Wii U version and Battlefield, Super Mario 3D Land, and Tortimer Island for the 3DS one)