It appears that, while Nintendo will be showing off the Zelda U/NX and a host of other games tomorrow, that other sites are also going to be making some announcements with special guests from Nintendo.

Gamespots E3 schedule has 2 listings for

New Nintendo Game

scheduled for 2:20pm and 2:40pm PDT

Will these be BRAND new games or just games we already know about, until tomorrow we can only speculate.

Source: Link