--The cover page shows the true aftermath of Germa's hideout, with Yongji and Niji being badly beaten and in a coma.
-The chapter begins with Yamato meeting a youkai in the basement, where she uses a new movement called Breath Yukiona, which was despised to freeze the fire.
--The result of her move is not seen to cut into big mama vs kid and low
--Big Mama is surrounded by magma-like flames, and all the surrounding metal on the field is either melted or red hot.
--The child tries to use his awakening again, but his fruit is not working, he and the law are hit by a barrage of lightning and paralyze both to the ground.
--Big Mama explains that when heated sufficiently hot, the metal loses its ability to magnetize, which is called the Curie Point.
--The last page is her double spread that looks like a demon from hell where all the surrounding buildings are melting
This legitimately sounds awesome but it seems too good to be true almost. Curie Point is a real thing and very interesting that it's included here.
Curie point, also called Curie Temperature, temperature at which certain magnetic materials undergo a sharp change in their magnetic properties. ... In the case of rocks and minerals, remanent magnetism appears below the Curie point—about 570 °C (1,060 °F) for the common magnetic mineral magnetite.
We don't know the full extent of Kid's and Law's awakenings but it would be really cool for Big Mom to talking about and showcasing this, maybe her own awakening too finally!
Really hope this is real, it fits with Vegapank's hint too.