No concrete reasons. Just the usual fact that it's Nintendo, which can't ever be missed!

Or maybe all of them don't have anything worthy to show?

Well l'm a Glass half full kinda person.

I think a new Metroid will ba announced!

Nintendo almost always has something hidden up their sleeve, along with the other two.

All of the first parties are on that boat though. The landscape in general is bleak and we are waiting to see if they have anything that can flip a table.

I'm super interested in the digital event though. It was good last year and they said its going to be even better. Paper Mario will probably be revealed aswell.

If this happens the consipracy theories about the next gaming crash will be everywhere.

Depends what you consider exciting?

I wouldn't expect too much between what we've seen now and what the Wii U will receive by end 2016,but hopefully Ninty proves me wrong

I'm thinking one more title for fall 2015 (probably Animal crossing but maybe Amiibo game like "Nintendo World")

2016 titles: Pokken, Project Treasure, Fire Emblem (west),  Zelda

Embrace the mobile future.

I will drive this sentiment into the ground.  If Nintendo wants to gain some ground they can't pull any punches.

They not only will have to showcase all of their upcoming most anticipated games, but they need to announce games for series that are well loved and are currently dormant.  Especially Metroid damn it!