There is no factory option for third row seats but there are a few aftermarket options.
There is a company called "little passenger seats" that builds a custom 3rd row seat for the wrangler, they have a couple versions: a full real 3rd row seat, single side seat, rear facing seat. I believe you can order them in leather or cloth and they can be matched to your interior color.
Here is a link to them:
Little Passenger Seats - Jeep Wrangler
There are pictures on their Facebook page that you can find through that link.
You have another option which I believe is also popular. There are a few companies that sell a bracket kit that you install. Once you install the bracket kit you can purchase the rear seats from a 2 Door Jeep and have those bolt right onto the bracket. That way you'll get a 100% OEM look I believe.
Here is one I found, I think there are many others that make these brackets:
| TeraFlex Suspensions
I hope this helps and welcome the forum.
