After declaring himself fit for next week's Champions League final in Moscow, Drogba told L'Equipe: "At the moment, the only thing I have in my mind is the final in Moscow.
"What will happen in June or July? I still don't know anything."
Drogba admitted earlier this season he found it hard leaving Marseille for Chelsea in July 2004, and was reported as saying he wanted to leave the London club.
He maintains his relationship with supporters in England has improved but admits he has found it difficult to settle.
"I didn't want to leave Marseille," he added.
"I had trouble getting used to Chelsea and I wanted to leave at the end of every season. Not because people were not treating me well, rather because of personal reasons.
"I have started everything again from zero in England. I had to replace a great striker in Jimmy Floyd Hasselbaink, who was a favourite at the club.
"It wasn't easy but my relationship with the English supporters has evolved.
"There was at first a dissension between us but I then understood what they expected of me. Now the rapport I have with them is like what I had with the fans at Marseille."