Damn right it could happen!
Turning Enemies
The last battle, the final fight, humanity's last stand as well as the Kaiju's. But the tide could be simply turned with a betrayer in one of groups, causing the fall of the other side. But can estranged allies stay friends for the sake of peace or will enemies always remain that way no matter how friendly they seem.
Don't worry, it's coming soon and it will be short enough that you can read it in ten minutes, just like the good ol' days.