Seems that a few of the larger companies have announced their E3 line-ups pre-show…
Actvision
http://www.eurogamer.net/article.php?article_id=59042
EA
http://www.eurogamer.net/article.php?article_id=59054
Also Mizuguchi’s X360 title was revealed, it seems to be called Ninety-Nine Nights and in typical Japanese fashion is a big fantasy war in ridiculously high detail. The screenshot looks vaguely like the PC RTS Warrior Kings albeit MUCH nicer! :D