Jordaan missed the opening leg of the competition in Dubai in December after undergoing knee surgery. She has since made good progress and is ready to take to the field.
The only other change to the 12-member squad that participated in the Dubai World Series is the inclusion of back Siviwe Basweni. They replace Sinazo Nobele and Ziyanda Tywaleni.
Springbok Women's Sevens coach Renfred Dazel was pleased to welcome back his regular captain and 2013 Springbok Women's player of the year.
"Zenay is a fantastic leader and player. Her experience and play-making abilities will be invaluable in Brazil," Dazel said in a statement on Monday.
"She is a key member of the squad and her guidance on the field in the last few months, despite being on the sidelines while undergoing rehabilitation, has been fantastic."
Dazel was excited to see what Basweni would offer.
"Siviwe has been working hard at training and she deserves a chance to show what value she could add on the field.
"We invited Kirsten Conrad, Nolusindiso Booi and former netball player Sunelle Barnard to train with us and this has raised the level of competition in the training squad.
"That said it will always be tough to select only 12 players, but we believe continuity in selection is important, while also giving the players who raise their hands at training a chance."
The team departs for Brazil on February 1, and face England, Canada and Russia in the pool stages of the competition on February 7.
Springbok Women's Sevens squad: Siviwe Basweni, Lorinda Brown, Phumeza Gadu, Rachelle Geldenhuys, Nosiphiwo Goda, Veroeshka Grain, Zenay Jordaan (Captain), Jacqueline Kriel, Marithy Pienaar, Fundiswa Plaatjie, Mathrin Simmers, Shona-Leah Weston.
Source: Sapa