The 32-year-old Croatian has scored five goals in 17 appearances for the Cottagers following a summer move from Hamburg.
"From the beginning of the season I was hoping to play more but I didn't so we will see," said Petric.
"I always try to give my best when I come in and in the end the gaffer is the man who decides so we will see what happens.
"I'm very happy to be here and everything is fine, it is just the fact I'm on the bench and I would like to play more."
Petric's last goal for Fulham came during a 2-1 defeat at Queens Park Rangers in December.