Okay this isn't a new chapter, more of a update. This will be my main theory as to the true history of Eldia, Marley and the rest. also has my theory regarding the future of AoT in a few ideas. Mainly there's quite a few things that don't make sense to me regarding the history as we've been shown. Here are my theories:

Eldians in general might've been an opressed people before Ymir Fritz gained the Titans power. I do think she never made a deal with the devil, but like the owl said instead discovered the source of all organic life. Magath admitted to Willy Teiber that Marley has always been a war driven country, and would be until it runs itself into the ground. Now I think that Marley hated the Eldian race akin to what the Nazis did to the Jews, and killed oppressed them before Ymir Fritz came along.

So my theory regarding the "devil's" ideiolofy was that once Ymir got her powers, she used them to wage war against Marley. However I don't think it was like how it was described with the ethnic cleansing or such, because Eren Krueger made it clear that if the Eldian race really did that sort of atrocity for 1,100 years, they're wouldn't be a single strand of marleyean hair nor any other races hair. So I'm not saying Eldians are completely innocent, but not the devil's the world makes them out to be.

Willy also claimed that Marley suffered theost under the Eldians war, and I believe that part to be true regarding Eldia vs Marley definitely happening at some point in history. The rest of the world has been sgockipiimg and developing weapons to fight against the 9 Titans to that Marley uses to carry out their war mongering, and if they only recently gained this achievements, Eldians easily would've wiped them out centuries ago when they had no such technology.

I have the biggest feeling that the Eldian race was once like that one kid in class who always gets bullied by the rest of the students and one day rises up and strikes back, sometimes in shocking ways. And because the Eldians what such power, they fought against those who wronged them in the past. So again not completely innocent, but not devils. Owl admitted that some of the propaganda he gave the restoration movement was false, but I do believe Ymir Fritz made things better for her people, hence why they saw her as a goddess.

To the rest of the world they would've only seen a threat, and so being salty at Eldians for finally having enough, claim them to be devils. For the hatred they face now is largely because of Marley enslaving and using the 7 Titans they had under control as weapons for their wars, getting the rest of the world to hate them even more as shown by the world leaders.

Now for the 7 Titans under Marley rule, things are 1,000% this way because of the teibers. the fritz family were the ones to restore order and stop war amongst the houses, so why would the teibers raise rebellion against them? My theory is the family began to become brainwashed by false ideology about their race, through Marley or other races they occasionally fought against, much like how the current generation is deluded about the people of Paradise.

Now I do admit that the 145 the king abandoned his people, there's no doubting that. However I feel he had no choice, inorder to protect his people he had to sacrifice some to save the majority. However he had too much faith in his oath to renounce war that he knowingly wiped the memories of those in the walls. Now this knowledge is still alive in his mind, which currently resides in Eren Jaeger. He was able to revieeve memories not only from friend because of the royal bloodline and his father consuming her, but also from Eren Krueger.

I believe Krueger recieved memories from the future, hence his odd words of saving Mikasa and Armin. I believe that he received tthose memoreis in a failed attempt of someone sending memories from the future in order to change the past.

If it were successful, hypothetically, then the Eldian race wouldn't suffer the atricitues it's faced since king fritz left to Paradise island. Its a Longshot, and maybe that's also why no prwvieos holder of the founding tian was able to overcome the ideollgy of the 145th king. he didn't want to risk it and because of that lack of conviction, continues to doom his race.

The time travel and transferring of memories can be seen in the very first episode of the anime, and shown in the manga in Eren's mind as a child the day his home fell. Eren saw the splattering of blood on flowers in the same fashion as Dina Fritz aka smiling titan killing Hannes. But before that he was shown to be talking with a woman named Mikasa, but a much older and different woman. So if not time travel theory, then it's a reincarnation theory. After all Eren in the latest chapter so resembles Krueger in both personality, looks, and especially in the eyes. Even if it's apart of his cover as a spy in Liberio, I feel that he really has changed and become his predacessors in a way. Granted he matured more in the uprising arc alone, but afterwards when regarding his future of who he really is as a person, he seems very different.

So either Eren can be Krueger reincarnated, or Eren's line is possibly one of the original bearers of the attack titans. If so that's why they all seem the same as time went on, even grisha was different when he finished killing the Reiss family minus Historia.

As for the next chapter, I know things are getting real intense. Reiner is most likely gonna join. Eren and the rest, and I feel they will make their move at the festival, since Eren told Falco about "going home to his family" after the festival passes. Hopefully he can get the understanding by the next warrior generation if he tells Falco and the Gabi the truth. They aren't stupid, the know the things their kind faces are wrong, and so I think they will join the Paradiseans. I also think Eren will use the founding titan to command or enlighten the people of Liberio about the truth, and Reiner may help in talking to them since he is their most admired warrior and he's been to Paradise. He knows the truth, so he definitely play a part in saving his people.

Zeke...i still hate but will admit that he's hiding something. Until we see more of what he's planning I will still hate him, he's killed too many to me, and yes more than just Erwin. He killed nearly every scout and tarnsofrmed dozens of innocent people into mindless Titans as well as the people use in the bombardment operations. So still fuck Zeke. He's my least favorite warrior, Porko is next because of how much of an asshole he is to Reiner in general. Even as kids he was a plain douchebag to him, plus he killed Ymir.

Ymir deserved better.

Pieck seems to know things aren't as they seem, but she know stherw isn't much choice hiben her and the other warriors situation. I hope she joins the Paradiseans side.

Those are my latest theories regarding regarding AoT or SnK in general. If you have more questions or theories of your own, pm me on either the mobile app or the actual site. Long live Ymir.

ps, next chapter will be up soon as I've already finished it. The chapter after that should be nice surprise!