The former Energie Cottbus striker has been farmed out on loan to Werder Bremen until the end of the season and has stressed that an Allianz Arena return is by no means a certainty
The 23-year-old moved to the Allianz Arena from Energie Cottbus in the summer of 2011, but failed to make an impact in his first season with the Bavarians and was consequently shipped out on loan to Werder Bremen for the upcoming campaign.
As well as moving temporarily to the Weserstadion, Petersen extended his Bayern contract until 2015, but is unsure whether he will represent Die Roten again unless he can impress during his time away from the club.
"It states in the contract that I will transfer back on June 30, but where I will play in a year's time is dependent on many factors," Petersen was quoted as saying on Werder's official website.
"Therefore I am not even thinking about next year. My wish is to score as many goals as possible. That is also a factor that has a big influence.
"If I only score five goals this season then I don't need to go back to Bayern. Then I can delete Munich from my GPS."
Petersen netted twice in nine Bundesliga appearances last term.