The Wrangler line is actually running at 100% capacity now. There's no space for any more production at Toledo South...currently.
However, they're currently analyzing the plant to see if they can get more production out of it-the outlook is good so far. Expect to see a substantial retooling for 2014/2015, when the Wrangler is redesigned, to address this issue.
As for a Wrangler truck, if it's coming soon, it'll come then. Manley and Marichonne have all but said that a production Jeep pickup is going to join the Wrangler lineup (Also with some potential for a wagon-bodied Wrangler version, something closer to the old SJ Cherokees or a Land Rover Defender wagon).
The Moab concepts are probably to gauge interest in whether people would rather see a Wrangler-based pickup looking like a LWB Jeep or more like the old Gladiators and J-Series trucks.