To be fair, that FFXIII trailer was a target render of what they believed they could achieve with PS3, then the PS3 hardware didn't quite turn out to be what originally intended and they couldn't quite get there (not that they necessarily would have even if cuts weren't made to PS3).
This is stuff that is running real-time on actual hardware that should be about as powerful as the next-gen consoles.
NO!
High end PC CPU vs 8 jaguar cores (tablet level cpu cores)
GTX680 vs 7770-7850
I'm really hoping my i5 3570k and 7970 Ghz Edition will give me max settings for a couple more years. Spent a lot of cash on this build. Could at least run Agni's Philosophy so that's something.
Anyways, I am confident the other next gen consoles will be able to go at least to Agni's Philosophy level, I don't see why they wouldn't be able to, never underestimate a close system.
You are set for next-gen.