the Sentinel fight looks...well it is abreviated and looks rather cheesy but...hey that answers the question of "will there be any sentinels or not?"
http://www.megaupload.com/?d=VQY1DH9Z
7-minute trailer here:
http://www.thatvideosite.com/view/2385.html
last x-men movie? a true shame if this is true...they've got a very good franchise going...