Smash Ultimate Direct August 8th 2018 announced at Evo

[Pachofilauri]

xMetroid said:

Lonely_Dolphin said:
There was already a seperate option for Online. As everyone has been speculating, it'll be likely the game's signature mode much like Adventure, Subspace, Smash Run, and Smash Tour were.

Dont say Smash Tour out loud or the grim reaper will rip your soul out.

It has to be some new adventure mode, if its something old like smash tour or smash run, they would have announced it like they did with classic mode