In September 2011, Markley announced plans to create a new Austin Aztex team which would compete in the Premier Development League beginning in the 2012 season. The new Aztex played their first game on May 5, 2012 at Woodforest Bank Stadium, home of the Texas Dutch Lions, and defeated the hosts 4–0. The first Aztex goal was scored by midfielder Tony Rocha on a free kick in the 6th minute of play. The Aztex's first home game was played on May 19, 2012 against the El Paso Patriots before a crowd of 2,507. The Aztex rose to the occasion with a 6–1 win, with Kris Tyrpak providing three of the Aztex's six goals.
The first Austin Aztex home game, against the El Paso Patriots on May 19, 2012. The downtown Austin skyline and the Texas capitol dome are visible in the background.
The reborn Aztex finished their first season with 9 wins, 5 losses, and 2 draws. They won their first playoff game against the Ocala Stampede but fell to Orlando City U-23's in the Southern Conference final.
In preparation for the move to USL Pro, the Aztex introduced a new logo and affiliated with the Columbus Crew SC, an MLS club which had also recently undergone a logo change.
The Aztex kits are dark blue with gold numbers and gold trim. Their alternate kits are white with gold trim and numbering. Kits are provided by Admiral Sportswear. Emergo Group, an international regulatory consulting firm headquartered in Austin, served as the team's jersey sponsor from 2012 through 2014.
The Aztex badge features blue and gold colors with a Texas lone star, a soccer ball, and the word "AzTeX" with an enlarged A, T, and X. "ATX" is shorthand for Austin, Texas.