Smash Wii U Event Matches: What kind of secrets are yet unseen?

[MajorMajora]

My question is: will they all be twists on regular brawls, or are we going to see something really unique? Things I'm hoping to see:
-A fight with master hand+crazy hand-throught master fortress.
-Boss battles with the stage bosses: no other enemies on the field, just a buffed version of metal face/ridley/etc. That we have to beat in one stock.
-A new little 'mini game', like lethal marathon.
-"Adventure mode" sequences using smash run enemies.
-A new boss separate from any other modes, possibly the final battle.

 

[SirIanAsh]

Nah, I don't see anything different in events...
It's just gonna be as simple (and fun) as the one in Brawl.

 

[Rakurai]

The events seem to have more creative clear requirements compared to Brawl, and it records individual scores for each character now.

However, I'm not too keen on customization being allowed for them. Getting a high score is just going to boil down to getting lucky with critical hits if that's the case.