With a connection to paths, the Attack Titan's ability to see into the past and future of its owners is greatly enhanced, and Eren saw visions of his father Grisha's life more clearly than ever, as well as the future he would eventually create.
He saw a future version of himself, pushing his father to complete the mission, and a future version of Zeke, who was perplexed by what was happening, as well as Grisha's subsequent plaintive speech.
Why did Eren have a long dream about the future in the first episode even though he wasn't a titan shifter yet? That's to do with the powers of the attack Titan. Attack Titan can see future memories, but only the ones that the future inheritors allow them to look into.
This is possible due to Eren and his father both holding the Attack Titan at various points in time. Zeke and Eren use the Coordinate to access Grisha's memories and, as discussed above, the Attack Titan sees memories from its future inheritors.
Eren's plan started before the final season even began, after the Survey Corps and their allies successfully instated Historia as the queen of Paradis.
By telling Floch and Historia his plans, Eren was able to spread word of his intentions. By impregnating Historia, he would protect her and eradicate the Curse of Ymir. These events took place approximately ten months ago, the pregnancy period for Japanese women. Additionally, Historia lied about how far along she was.
When Season-3-Eren kissed Historia's hand, he saw Grisha's memory of his slaughter of the Reiss family, which Grisha did on Future Eren's orders, with Season-4-Eren present via Zeke's Founding Titan powers.
Eren was devastated by Sasha's passing. However, because of what he experienced and what he had to do to save the Eldians, hearing Sasha's final words made sense to him and brought back memories of when they were younger, and it was easier to hate the Titans for the devastation they had caused.
The idea of "the future doesn't change" in AoT is that even if Eren tries to change the outcome of him saving Ramzi, he can't make himself because that's just the person he is. Eren Jaeger will save Ramzi, that future doesn't change because who Eren is as a person doesn't change.
TLDR: No, because Eren has never altered the past. Attack on Titan uses what is known as a fixed or set timeline, which means that there is only one and it is unchangeable.
Even though Eren fails each time at stopping the cycle of hatred, he always starts the loop over 2000 years to try again.
However, in the first episode of the Attack on Titan anime Eren was crying because of a nightmare of humans being devoured by Titans.
Eren finally went to Marley and pretended to be injured, so he could spy on his enemies at a hospital. Due to the time jump and how much more he learned about the world, Eren's personality greatly changed. This new side of Eren was nothing like what fans would have expected him to become.
It was then that Eren realized the hatred for Eldians (especially on Paradis) would never end, and it would be better to just destroy the world leaving only Eldians from the island “that bore and raised him”.
> Eren and Zeke didn't trust each other, both also didn't know what exactly is going to happen if they touch (like who is in control of the founding, are the other shifters (warriors) gonna sense it, are they gonna transform etc), so both can't risk it at that moment.
Upon killing Eren by severing his head from the spine, Mikasa kissed him farewell. Seeing Mikasa's choice, Ymir abandoned her hold over the Founding Titan, ending both the Rumbling and the Power of the Titans.
Advertisement: "If you want to try and stop me... then try to stop me from ever taking another breath. You are all free." Eren Yeager. Those are his last spoken words, after which he remains silent until he is decapitated by Mikasa.
In short, Eren influenced the actions of the Smiling Titan in order to save both Bertholt and Armin -- whilst also fueling his younger self's hatred towards the Titans. By doing so, Eren ensured that the events of the manga played out exactly as they should have.
One of the most memorable moments of the two was when Eren ran behind her and hugged her making her cry, telling her she's only a normal girl that deserved her freedom like everyone else.
A distraught Zeke watches Eren whisper in their father's ear, “You keep moving forward. Even if you die. Even after death.” Eren convinces his father in a moment of hesitation to kill the Reiss family.
The reason being she isn't a Titan Shifter herself lol. However, if you were to inject her with a titan's spinal fluid, she would 100% turn into a Titan. Unfortunately she would only turn into one of those mindless titans. She would have to eat another titan shifter to be able to revert back to human form.
Christa is the wife of Eren.
In Eren's character interview, it is said that Eren has feelings for Annie; but doesn't know if it's out either romantic or just deep admiration. Isayama cleared this statement up and said it's only “deep respect.”
With the Farmer being confirmed as the father, the two eventually got married; however some fans believe that Historia got married out of duty, and for the child's sake. They believe that it is unknown whether or not Historia truly does love the father despite approaching him in her orphanage.