скорее всего вы когда-то отвечали на такой вопрос, но UndeRewind все еще существует после ухода Rewind, вы ответили на некоторые вопросы, которые местные Асгор, Альфис и возможно Флауи выжили в UndeRewind. и еще вопрос если не сложно ответьте что с душой фриска/чары она осталась в андеревинд, или рейвинд забрал ее с собой?
Translation:
most likely you once answered such a question, but UndeRewind still exists after the departure of Rewind, you answered some questions that local Asgore, Alphys and possibly Flowey survived in UndeRewind. And another question, if it’s not difficult, answer that with the soul of Frisk / Charm she remained in the underwind, or did Reywind take her with him?
It isn't known if UndeRewind still exists at this point. It did for a while after Rewind left but it was already falling apart.
Before Rewind settles down in Huntertales, he does try and return home but isn't able to for some unknown reason. It's like he was either locked out, somehow, or the AU had vanished from the multiverse. He then assumed he was too late with saving it from its destructive corruption and that the AU had either crumbled completely, or that someone like Error!Sans had dealt with it through deletion. But Rewind was never a 100% sure about UndeRewind's fate. That's the mystery about UndeRewind~
As for Frisk and/or Chara, have a read through the posts linked below:
Brat, have you tried to make any friends regarding other humans that aren’t from your world? Also! Can we see a full outfit view I think it
Is frisk aware of Brat's genocide runs?
Brat: Frisk, now that's a name I haven't heard for quite some time! Nah, I don't think she knows. W
I'm not going to explain everything in detail so some vague hints will have to do, sorry! xD I'd like to keep some spoilers, surprises and all that jazz for I find a way to tell UndeRewind's whole story, whenever that may be.