Everyone who goes back to their world should return in the exact same time from which they came, just like usual. I'm sorry, but we can't bring people back to life... that's a power that exists only in this place.

I'm not sure about sending people to other worlds, though. We could try the Shift theory we're developing for the kids, maybe? We just can't really promise anything right now. It isn't a priority to send people to other places... most people just want to go home.

Memories are an iffy thing, but since the method of going back will be different than usual, I believe there's a good chance that we won't be forgetting this world. Which is kinda good and bad, I guess! And like the rest of it, it's mostly just a theory. But it's nice to think about isn't it?