Captain America: Super Soldier
Mario & Sonic at the London 2012 Olympic Games
Rise of Nightmares
SEGA Rally Online Arcade
SEGA hasn’t sent out a press release confirming these titles, but these are the games that are listed in Famitsu. The magazine has E3 news from Konami and Tecmo Koei/Team Ninja as well, so the list above is most likely spot on.