Sao Paulo have already confirmed plans to buy the Brazilian outright.
Denilson told UOL: "If Sao Paulo come tomorrow and say that I'll stay, it will be an immense joy as I have always wanted to stay.
"If they leave the decision to a later point, I'll feel annoyed. I want to be calm, to solve everything so that I can work without any problems.
"June is far away, but at the same time it's so close. I want this to be done so I can focus on Sao Paulo and help my team-mates."