Sound files for Fire Emblem's Roy and Street Fighter's Ryu have been uncovered in the latest Super Smash Bros. update.
Yesterday, an update went live for Super Smash Bros. 4 which finally delivered the game's first DLC character: Mewtwo, but may have inadvertently leaked some additional information to ambitious data miners. Reddit user Shinyquagsire has decrypted the data contained in the latest patch, and discovered a suite of sound files relating to Roy, of Fire Emblem fame, and Street Fighter's Ryu - suggesting that they will be the next DLC characters to follow Lucas.
Two of the Roy and Ryu sound files are in the exact same format as all of the other character's victory music, which you can check out here and here. Roy's victory music is the Fire Emblem main theme, and Ryu's is appropriately the Street Fighter theme. Additionally, there is a second Ryu sound file that seems to be related to a new Street Fighter-themed stage. Can't have a new franchise character without a stage to play him on, after all!
Roy was actually a Smash Bros. character back in the Super Smash Bros. Melee days, but was removed in Brawl and replace with Ike. Ryu, has, of course, never been in a Smash Bros. game before, but considering Nintendo's partnership with Capcom in bringing Megaman to the game, adding the iconic martial artist as a new character doesn't seem too big of a stretch.
While it's a bit early to say these characters are completely confirmed, keep in mind these are official game files being dug right from the guts of the 3DS version of the game, and added only in the most recent patch.