Dual Shockers asked Square Enix about the Amazon posting of Tomb Raider on PS4 and rumours of an Xbox One version and were told the following:
"It's so hard to keep a secret these days! We appreciate all of the enthusiasm, however we don't have any details to share just yet. That said, we highly recommend you keep an eye on any major gaming events happening in early December."
Sounds like we might see Lara at the Spike TV Video Game Awards on December 7. Possibly with some new content added to the game that saw release on PC, PS3 and Xbox 360 earlier this year.