Nintendo confirmed today that there will be a massive update for Super Smash Bros. on Wii U coming at the end of the month.
Tourney mode will launch and along with it, YouTube replay uploads. There are two categories to compete in: Community Tourneys which have players compete for top scores in a certain amount of time and Regular Tourneys which have their own rules and only happen at certain times.
There is also new DLC available for the 3DS - new stages and Mii Fighter costumes. Check out the Smash Bros Japan Twitter feed for more pictures.