Wyman told TVLine that the Fox sci-fi drama's concluding 13-part run is "not a season for tricks and multiple universes, [or] new introductions of things".
"One thing I was adamant about was getting inside the emotion of the characters that everybody has grown to know over four years, and really pay that off in a big way," he explained.
"[This season] is about questions, about emotion, about family... I want to put the viewer down on ground level with our characters, so they can go through this final experience with them."
Wyman promised that the final episodes will be "profound" and that Fringe will also end on a hopeful note.
"That was really important, because I can't accept closure that doesn't have some form of hope. That's just who I am," he said.
The exec producer added that he is more concerned with providing an emotional resolution for the show's characters than in wrapping up plot points from previous seasons.
"Sure, there'll be some guy in Des Moines going, 'Hey, you never answered that thing in Episode 3...' But that's okay. I'll live with that," he insisted. "Because all the stuff that's really, truly important - the emotional things - will be addressed."
Fringe returns to Fox in the US tonight (September 28) at 9/8c. The show returns to Sky1 in the UK on October 24.
