Sega will show this list of games at E3.
Sonic Lost World
Castle of Illusion
Company of Heroes
Total War: Rome II
The Cave
Source
As you can see no Mario & Sonic at the Sochi 2014 Olympic Winter Game however, I still think the game will be playable at E3
Sonic Lost World
Castle of Illusion
Company of Heroes
Total War: Rome II
The Cave
Source
As you can see no Mario & Sonic at the Sochi 2014 Olympic Winter Game however, I still think the game will be playable at E3