The 29-year-old started training with Bloemfontein Celtic in the hope of securing a contract this season, before the enforced suspension of football.
However, due to government regulations to help curb the spread of the coronavirus, group training and all other football activities have been banned.
This has pushed the potential deal for Rantie to sign with Celtic to next season.
Phunya Sele Sele are yet to return to training while they await direction from the PSL on the way forward for the resumption of the season.
Celtic CEO Khumbulani Konco says Rantie is still in their plans but will only assess him again when the rest of the team returns to training.
"Nothing has changed bhuti. The players are still doing individual training at home," Konco tells KickOff.com.
"We will assess Tokelo again together with the whole group of players when we come back for training."
Celtic will also decide if they want to sign defender Justice Chabalala on a permanent basis next season. The 28-year-old is on loan from Orlando Pirates.