The 24-year-old is one of the most sought after strikers in European football, and was strongly linked with a move to Chelsea and Manchester United this summer.
Lewandowski remains coy over his future, insists he is no hurry to decide.
"I have two years left on my contract, and this is well a long time," he told Bild.
"I do not need to make a decision today. Not if I am to stay on, not if I am to leave. There is no decision time-limit for me.
"I do not know what will happen at the end of this season. I do not rule anything out. Ruling out something would not be professional behaviour I think. "But my main focus at this point in time is my progress and the progress of Borussia Dortmund."
Bayern Munich have been linked with a shock move for Lewandowski and he admits he would have to consider any approach for the powerhouses of German football.
"If there is an enquiry (from Bayern Munich) it is always something of interest for me. You simply have to look into it. It is such a big club in Bundesliga," he added.
Source: team talk
Source: team talk