Nintendo kicked off their SmashDirect right: Ken is confirmed to be taking part in the festivities, as is the Pokemon Incineroar.
Sakurai reminds us that they have 72 fighters confirmed so far ("74 if you count Pokemon Trainers forms), and now they have 74 official full characters. Ken is an Echo Fighter for Ryu and based on his Super Street Fighter II Turbo incarnation. All his moves are slightly altered as well as his command kicks and he's a little faster than Ryu. Shinryuken and Shippu Jinraikyaku are his Final Smash abilities.
Incineroar is based on a wrestler style with plenty of throws as well as lariat, cross chop, counter (revenge) and the ability to create ropes. He looks like a lot of fun and will spur plenty of combo videos.
Sakurai says that all of the fighters are announced, not including DLC. That's it for launch folks!