Hey guys im new to this but i have a awesome theroy to reveal the 9th titan. Fist off Id like to go back to ymirs past in her titan form. Now we all know that to turn from titan to human you have to eat a human with the shapeshifters ability. So when ymir eats bertolts friend she turns info a human. Which must mean that the 9th titan shifter has to be the guy that got eaten. Imagine if he didnt get eaten then all three walls would get destroyed by the collasol titan, armored titan, and the otber guy. Meaning they would be able to destroy all three walls and earase all of humanity. Thats all for my theroy if you thing im wrong then just tell me because its my first time doing this. Thank you and peace out!