It appears that the rumoured January 2016 release for the PC version of Rise of the Tomb Raider was legit after all. The official Steam store page for Rise of the Tomb Raider went live today, hinting at a January 2016 release.
Apart from the following description, Square Enix has not provided any additional details about the PC version (or about its PC requirements).
“Featuring epic, high-octane action moments set in the most beautiful hostile environments on earth, Rise of the Tomb Raider delivers a cinematic survival action adventure where you will join Lara Croft on her first tomb raiding expedition as she seeks to discover the secret of immortality.”
Stay tuned for more!