I liked this chapter, I think it was very good.
I commented about the time machine issue before. I will say I don't think it's a retcon. Other times the machine was reset to change the amount of years from the departing timeline, Trunks in his second travel and also Cell that didn't travel the same amount of years either. Bulma is talking about this specific moment, now it can't be reset, we are not given a reason, even more, the link between the two timelines is fading, this will be the last time. I guess they will be able to use it one more time to come back, Bulma will travel with them like in the anime for sure. But the other extra travel to bring Zeno? I think things may be different, which I hope.
The two saiyans retreat but Trunks and Mai stay in the future. The cat, not sure if it's Scratch or a different one, escapes with them, natural survivor. In one hand, Vegeta goes to the RoSaT, he seems confident when he gets out, without breaking Dende's temple, thank god. I think we may have again some power sacaling problems like the previous two chapters, but, for now, we don't know. On the other, Goku goes to learn the Mafuba with his old master. All the explanation that Roshi tells about the techique are great, but the anime was funnier this time, with Goku training with the turtle. The seal, I think Goku is going to forget it like in the anime. One more important thing, Piccolo is not there, I don't think Bulma will have the Youtube tutorial video of the Mafuba, so I think Trunks is not going to be the one performing it, which is a relief for me. Goku spent a day learning it, he should be the one using it, although it will be for nothing.
In the other timeline, we have the fight. The power difference is inmense and the power scale makes total sense this time. I'm glad the manga didn't go with the SSRage transformation, it didn't make any sense to me. Does it mean I wouldn't have liked if Trunks had had a way to fight Black more evenly? No, just not at any price, like in the anime. I would have liked a boost to SS3, considering his SS2 was already that high. Even better, they could have done the SSG ritual for him before going. In any case, I didn't like the transformation that Toei made up. For that, I prefer he stays as he is.
This time the Kaioshins come to the rescue, which is great, in the end, all this mess is about them, they should be involved. Gowasu feels guilty and makes the stupid move of trying to help his apprentice. Which brings us a great moment, when Black stabs him and explains how he did it the other two times. Black is great in the manga, those eyelines and his madness. It's Goku's face but totally mad and evil! Now the quetion is, is Gowasu dead? We'll see, I think Goku and Vegeta will make it in time to cure his injury.
By the way, Mai getting the sword, looks like it will have a role, probably like in the anime. But can't be the same, the enemies confirmed that they have killed the last survivors on this chapter. It's good to know, because the way a Genkidama happened without anybody making the move was bad as Hell.
I think we'll need other two chapters to end this arc. Fusions, please! I prefer Vegetto, but it would be nice to have a canon Gogeta too, so I don't care.
Heno heno kappa!