Walusimbi was released from his contract with the Glamour Boys in January after spending less than six months in the PSL.
According to a source close to Walusimbi, the player could return to South Africa next season with one PSL team having shown interest.
"He is back in the country [Uganda] and clubless at the moment," the source tells KickOff.com.
"There was interest from Black Leopards before he returned home but the club promised to consider signing him for next season."
Despite being unattached, Uganda national team coach Sebastien Desabre has named the former Amakhosi defender in his provisional squad ahead of their Africa Cup of Nations qualifier against Tanzania this month.
Uganda have already qualified for the Nations Cup finals in Egypt this year.