GM will be bringing their global small pickup (GMi700) to the US in 2014 according to PickupTrucks.com. Sounds like the global version (built in Thailand) will launch this year, but by early 2014 US versions will be built on American soil.
It sounds like the new pickup will be about the same size as the current Colorado (which is only slightly larger than the S-10/Somona it replaced). However, it will remain body-on-frame and in typical global small pickup fashion, it will have a 1-ton payload capacity and feature diesel engine options (at least internationally).
So, combine that with news of a refreshed Tacoma (Hilux-based?) coming in 2013, and Nissan bringing back a Hardbody/D21-size pickup in the near future… we may have some pretty sweet small pickups heading back to the US. Mahindra still has a shot but they need to get their act together quickly.