Just three days after scoring the winning penalty in Chelsea's shootout victory over Bayern Munich in last month's Champions League final, the Ivory Coast international announced he would be leaving the London club.
"There is a big possibility he will come [to Shenhua] but it will depend on the hard work the club puts into bringing him here," said former Argentina midfielder Batista.
"It's not as if the club wants someone to come here and they [automatically] come - it is not that simple."
The Shenhua players, including Drogba's former Chelsea team mate Nicolas Anelka, resumed training on Thursday following a mid-season break.
Last month league leaders Guangzhou Evergrande appointed Italy's former World Cup-winning coach Marcello Lippi after sacking South Korean Lee Jang-soo.
Drogba scored 157 times in 341 appearances, making him the club's fourth all-time leading scorer, while his 34 European goals are a Chelsea record.
