What is the next Super Smash Bros. Game?

The 1st one is SSB- Super Smash Bros. for the Nintendo 64

After that is SSBM- Super Smash Bros. Melee for the Nintendo Gamecube

The next one is SSBB- Super Smash Bros. Brawl for the Nintendo Wii

SSBB is reported to be the last Super Smash Bros. game on many websites