Hadn't expected any Sega announcements this time around, but that certainly made things better this ND. Time for some analysis
So, we know the following...
3DS:
May 24 - Donkey Kong Country Returns 3D
June 9 - Animal Crossing: New Leaf
August 11 - Mario & Luigi: Dream Team
October - Pokemon X & Y
Wii U:
June 20 - New Super Luigi U (DLC)
June 23 - Game & Wario
August 4 - Pikmin 3
August 25 - New Super Luigi U (Retail)
September 15 - The Wonderful 101
So, let's think about what else we know (and what 2013-2014 will have)
3DS:
Mario Golf: World Tour - Summer was planned, Sept/Oct?
The Legend of Zelda: LTTP II - This year in US, December
Mario Party 3D - Winter, expect Jan/Feb 2014
Yoshi's Island - No ETA, expect mid 2014 (May-ish) considering demo contents
Bravely Default: Flying Fairy - Dec in EU, 2014 US means no later than March 2014
Sonic: Lost World - Date TBA, expect holiday season (Oct/Nov)
Smash Bros - Started Namco-Bandai work in 2012, certainly no earlier than late 2014
Wii U:
Wii Fit U - Was "Launch Window," now Oct/Nov as major casual title.
Wii Party U - Was Summer, now Nov/Dec as major casual title.
Yoshi Yarn - Date TBA, expect Q1-Q2 2014
The Legend of Zelda: Wind Waker HD - Expected this year, late Sept/Oct likely
3D Mario - Expected this year, November likely
Mario Kart - Expected this year, December likely
X - Date TBA, expect mid-to-late 2014, 2013 Japan release possibly
SMT X FE - Date TBA, 2014 most likely
Sonic & Mario at the Sochi Olympic Games - Date TBA, Dec-Jan release near event
Sonic: Lost World - Date TBA, expect holiday season (Oct/Nov)
Smash Bros - Started Namco-Bandai work in 2012, certainly no earlier than late 2014
Considering that the above was not shown at this past ND, we might be getting quite a ND if they show all the above in one go, but I'm convinced we will be getting two E3 directs: one on Wii U and the other on 3DS. We might even get one the Sunday before E3 followed by another the week or two after like last year.
Either way, I somehow doubt we will be getting any surprise announcements this E3 other than Retro's Game, and that's kind of a known commodity.