I know a few things about Super Smash Bros. 4 Wii U/3DS. For one thing, I know of two newcomers. Ray 01 makes an appearance as a playable fighter from Custom Robo. He was planned for a March reveal but was pushed back for the summer/fall release of Custom Robo 3DS. Yoshi, Wario, and Mr. Game & Watch are some fighters that will be revealed in the next 2-4 months. Yoshi is expected for Yoshi's New Island, Wario is expected for Mario Kart 8, and Mr. Game & Watch is expected for a random reveal. Dates subject to change. An assist trophy I know is Ridley. He eats people. The other newcomer besides Ray I know is Ghirahim. He has three costumes which are normal, Fire Sanctuary, and Final Form. He has a counter attack that ties in with his quickness in Skyward Sword. He grips the projectile/weapon and it goes after the sender. Neato. Fabulous.