AndrewCrossett
Satsu Otaku
Good thought. The only existing allies I could think of was Andrew summoning some creature to pull her out or Clem, but Illyria makes more sense.
The only flaw in that theory... or any of those three theories... is that Buffy has just banished all the demons and magic from our world. Therefore neither Illyria, nor Clem, nor Andrew's summoned creature could exist in our reality to pull Buffy out. Which would suggest she's being dragged into Hell, not out of it. Not that that would necessarily be fatal for her.
But how would she get home if there's no longer any magic on Earth that would allow a portal to open or a spell to be cast?
Another oddity is that Melaka has had access to the Watcher Library, which is presumably why she recognized Buffy's name as a former Slayer. But wouldn't she then also have known that Buffy was THE Slayer who won the big battle, and made some mention of that at some point? It's not certain that she would have, but you'd think she would.