The 'dark cybertron story' is a complex narrative. Generally, it involves a lot of power struggles among the Cybertronians. There are different factions with their own goals, often leading to battles and political intrigues on Cybertron.
The main plot involves the conflict on Cybertron between the Autobots and Decepticons. It's about their struggle for control of the planet, resources, and their different ideologies. The Autobots generally fight for peace and freedom, while the Decepticons are more about power and domination.
I can't provide the ending of the novel 'Traceless Falling Leaves' because I haven't read it. However, generally speaking, the ending of a novel was the result of the author's own conception and creation. It might be modified and adjusted according to the plot, character development, and other factors. If the author had copyright issues, they might not be able to share the ending publicly. It is recommended to pay attention to the author's updates and copyright status when reading novels to avoid accidents.
I'm not sure which novel you're referring to. If you can provide the name of the novel or the author, I will try my best to provide you with more detailed information.
One of the main themes is adaptation. Both the Transformers and Cybertronians have to adapt to the new situation when they cross over into each other's worlds. This can involve adapting to new technologies, cultures, and social structures. Another theme is the search for identity. Some characters may question who they are when they are exposed to a different set of values and beliefs from the other universe. Additionally, the theme of redemption can be found in some fanfictions. A character who has made mistakes in one universe may find a chance to redeem themselves in the other. There's also the overarching theme of cooperation, as the two groups need to cooperate to overcome various difficulties that arise from the crossover.
In the 'Transformers War for Cybertron Novel', apart from Optimus Prime and Megatron, there could be Starscream. Starscream is a Decepticon who is always scheming to take over Megatron's leadership. On the Autobot side, Ratchet might be a main character. He is the medic of the Autobots, providing crucial medical support and often having some wise words for his comrades. Ironhide, with his tough - as - nails attitude and powerful weaponry, is also likely to be a main character.
One key feature is its in - depth exploration of the Cybertronian world. It likely delves into the backstories of the Transformers, their factions, and the reasons for the war. Another is the character development. We can expect to see how the Autobots and Decepticons grow and change during the conflict. Also, it probably has detailed descriptions of the battles, with unique strategies and weaponry specific to the Transformers universe.
One popular 'Cybertron Crossover Fanfic' is the one where the Cybertronians cross over with the Transformers Animated universe. It combines the unique designs and personalities from both and creates interesting storylines.