I am pretty sure that FFXIII is not a return to older FF combat systems... IGN has it listed as an action-RPG and it has been desribed to be the an action packed combat system with an emphasis on action and gun play... Sounds like a JRPG version of TooHuman. I can't get a link right now because I am at work.
Back on topic.
Tokyo Games Show is always dominated by Sony, because Nintendo doesn't go.
I would cite regulation, but I know you will simply ignore it.