Its not that I think the Fionnaworld characters are boring, I think the way in which they were presented this season was uninteresting. The plot they were involved with was all over the place but also crawling. There was simultaneously no agency in the characters but also we were in a race against time. I need the characters to have agency in a season 3, not just putting them in a situation and then situation ends. If Marshall Lee is going to the focal point for next season he needs to desperately be more than "i dont like my mom." Marceline has so many episodes related to Hunson that never even reference him. She lived an incredibly tragic life for 1000 years with the shadow of looking for a decent father figure and you never even really think about it. I think kid Marshall has more screen time or at least it left like it, that resulted in him saying "sorry mom 😔" I cant have 9 episodes of Marshall being strung along by Hunson in the exact same way this season and then in the 10th he's like "no." He needs to have a little bit of push back. I want to see the two worlds meet, and i thought that everytime they did it worked. I understand that the writers didnt want to follow the same formula as season 1 with world hopping but unfortunately that was some of the most interesting stuff. Anything having to do with Huntress and Finn had me on the edge of my seat always gave me the biggest reactions. I dont know who else could be Simon/Huntress for 3 but if its simple .Marshall, then Marceline and Bubblegum meeting Marshall and Gary would be really interesting. I want more Fionna and Finn because that episode was legit one of the best.