V-Jump has released some further information on the battle system for Final Fantasy XIII, it appears to mix both the seamlessness of FFXII, and the good old command/turn based FF style (albeit with a new attack chain based system)
Furthermore, V-Jump reveals the correct translation of 'pigtails girl' is actually 'Oerba Dia Vanille' - sounds french or something!
There's also a mixture of CG and ingame cutscenes there too.

 

Check them out here: http://www.gconsole.com/kyle/PS3/FF13/FF1302.jpg
                                        http://www.gconsole.com/kyle/PS3/FF13/FF1303.jpg
                                        http://www.gconsole.com/bon/FF1304.JPG 
There will be new Famitsu scans in the week, which will reveal more of the battle system!

 

While i'm here, i just want to make a correction from my last entry (it won't let me edit it for some reason)
There was actually THREE new characters revealed in the end, there was an extended version of the closed theatre trailer that revealed him, he's a buff guy clad in green clothes, with an orange afro! Sounds... unique. 
A Japanese person lucky enough to see the trailer has also sketched what they remember of the second newly revealed character (the asian girl) Here's the sketch: