No, it's just a delusion. There aren't real consequences or significative changes in the show after FP's debut and romantic drama and that became really obvious after Stakes. Mareceline lost her vampire powers! No wait she recovers them after this arc. Finn discovered his home and he convinced to humans of leave the island and take them to Ooo, nah they don't really wanna leave, maybe later but right now they don't want to leave (they will never leave the island in the show), There is a new Ice Elemental! No wait, she decided froze herself again just like at the beginning of her arc.
Woohoo this story really change and the consequences are everywhere.