According to a new image that Infinity Ward posted on their Facebook and Twitter feeds, it appears that they might be developing their next game on Valve’s upcoming Piston PC (also called Steam Box). The Piston PC is a new game box being developed by Xi3 and backed by Valve. It is rumored to cost around $499 and come later this year. The Steam Box is basically a gaming PC designed for use with home TVs.
The images of Xi3 that Valve showed at CES 2013 are the exact same as what Infinity Ward tweeted. This suggests that Infinity Ward might be developing their next game for this new device.
SOURCE: @InfinityWard via GameSpot