Unfortunately, the six-speed manual is not offered.
When Jeep debuted its all-new Wrangler at LA last November, there was only one engine shown, the familiar 3.6-liter Pentastar V6 with 285 hp and 260 lb-ft of torque. We've long known a turbo four would become available at a later date, but we didn't know how much extra it would cost. Thanks to JL Wrangler Forums, we now have an answer. For an additional $1,000 MSRP ($890 invoice), the turbocharged 2.0-liter four-cylinder with 268 hp and 295 lb-ft of torque can be had and dealers are supposedly not taking orders.
However, it will only be paired to the eight-speed automatic whereas the V6 can be had with a six-speed manual if you so prefer. That eight-speed alone is a $2,000 option, so combined with the cost of the engine itself, turbo four Wranglers will cost at least an additional $3,000. The turbo four pricing was learned from FCA's dealer ordering system, so it's a pretty fair assumption the information is correct. As of this writing, FCA has not denied nor confirmed the figures. The EPA has also not yet released official mpg ratings for the turbo four. The Pentastar V6 has a combined rating of 19 mpg, but we expect the turbo four to be far more efficient.
For that reason we wouldn't at all be surprised to see this engine become the most popular choice in the new Wrangler lineup, despite being a bit more expensive and no manual availability. Looking even further ahead, a 3.0-liter turbo diesel V6 is also a planned option, but we can't confirm an on sale date just yet. The new Jeep Wrangler with the V6 is expected to hit dealerships very soon and based on today's leak, we expect the turbo four to follow shortly thereafter.