The 29-year old Argentine has been heavily linked with a return to his former club and although he admits he will be back there one day, he says now is too soon.
"I would die to return to Boca," he told Canal 9.
"But it's very difficult at this moment. Who would pay the transfer fee? When I didn't play, City didn't want to transfer me to Milan for 20 million, so now that I am playing it's even more difficult.
"I will be back [in Argentina] at the age of 33."