Discussing the "halo" that many fans have placed on the show's first season, Murphy suggested that the upcoming episodes will take the characters back to their early "underdog" status.
"I will say the story for season four gets back to the underdog status [for the characters]," Murphy told Vulture. "And that will appease people, maybe.
"Sometimes I feel that you can't win. It's just a volatile group of people that watch it, and for that, I like their passion."
Murphy went on to reveal that he knows what the very final scene of the show will be.
"Even though Glee is sometimes a hard road, I am very excited about writing a multi-year arc," he said.
"For example, Rachel Berry, meeting her as you did, hopefully by the end of her journey she will be a star. That's a very long, long period.
"I know where she'll end up; I know what the last scene will be."
He also confirmed that the fourth season will feature a second Britney Spears tribute episode.
Murphy previously stated that the show will shoot in New York for its fourth season.
Watch a promo for the Glee third season finale below: