looks like Jean got his wish, and did Ymir actually let Fritz died or this more symbolic of her being free from him?

Could be symbolic, Ymir showing this to Mikasa or something.

Also, the worm tree could be part of the visions of a different future that Eren shows to Armin or Ymir shows to Mikasa. If this is the actual ending, then everything that happened is absolutely pointless.

sequal manga

fritz indeed died in the assassination attampt, the whole plot shouldn't be happening, both plot hole and time paradox

https://www.youtube.com/watch?v=5bjLblbi0Vk&t=190s

I was pretty gutted at my first read, but I do like the ending. It's tough and quite anticlimactic (more main characters should have died instead of getting a "live happy" get out of jail card), but I like the idea of Eren being a slave all throughout the whole ordeal. The whole Chad Eren killing the entirety of humanity would have been way too edgy and honestly, it didn't make much sense in regards to Eren's character either. It's the good kind of cruel. Ymir being a slave to the bitter end made sense to me. Too bad some of the lore didn't get proper explanations, but I've learned to not expect that, it's just how it is, fans theory craft stuff the author didn't even think about because he didn't deem it essential to the story - and most likely ran out of chapters.
We didn't really need all the previous political bullshit to get to that point though, I barely even remember wtf I read during that part

Just read the extra pages. It makes Eren's decisions appear even more stupid and pointless, ultimately. Rubbing how futile it was (save for letting his friends lead their lives) feels moot.
Mikasa going for Jean is whatever, I guess she deserved to be happy but her getting with Jean is random af, yet I'm a hopeless romantic, I didn't really want to see that, much like Eren. Paradis still getting obliterated in the end is in line with the rest of the manga, just makes the whole story feel inconsequential.. but it's fine. However, the kid at the end hinting that Titans aren't over ? I hope it's no excuse for a cheap sequel, because it sure does feel like it. I'm fine with the cycle of hatred going on, but for the Titan cycle to start anew ? What's the point if it doesn't change anything within the world, in the end ? I honestly preferred how open-ended the original issue was. It's fine writing a tragedy in which characters are helpless, but I'm not sure this format and the generally shounen-esque tone are the best for it.

From the start of the trailer you do see that Levi right eye still intact but clearly he lost the vision in that eye, unlike the mange which it was ambiguous till the very end of the manga.