Next Avatar Novel prediction

An 18 year old Avatar Kuruk novel, with the Deuteragonist being mainly Jianzhu (like Kavik & Rangi) but also have Kelsang & Hei-Ran in the main cast. The novel cover will have Kuruk with a calm face with a beard. Avatar Kuruk recently mastered the Avatar State & elements. The antagonist will be a lava bender mass killer. The story's setting will take place in the Earth Kingdom. Hei-Ran will use fire jets. Kelsang will have air nomad tattoos. An underground civilization will be in this novel. Avatar Kuruk will lava bend in the Avatar State. The antagonist will be unalived. Peng Peng will have a fear of tunnels/enclosed spaces. Avatar Kuruk will talk to Avatar Yangchen. Avatar Szeto will be mentioned to have visited the Sun Warriors. Avatar Kuruk will primarily use ice bending for combat. There'll be a mention of the assassination of the 40th earth king. There'll be two other povs within the novel besides Kuruk's. A new water bending move will be done. Jianzhu will have a duel with another earth bender.

Note: These are all theories