The fullback has been training under Clever Boys coach Gavin Hunt for the past two weeks with the hopes of landing a deal.
According to a source at Wits, Mere is set to start contract talks with the topflight outfit.
"Mere has done well during the trials. They are set to start discussing [a contract]," says the source.
The 34-year-old spent almost seven years with Stars before leaving the club following its relegation to the NFD at the end of 2017/18, and reincarnation as Cape Umoya United.
The Students have signed Bantu Mzwakali, Gift Motupa, Robyn Johannes, Deon Hotto and Brighton Mhlongo ahead of the new campaign.