...she takes a moment to consider the possibility that this may all have been a trap and GLaDOS might've just led her here just like that. It's a very ugly possibility.
...
It doesn't feel like GLaDOS's style, though.
She proceeds into the cylindrical room.
Disconnected, lying on the floor of a glass box, off to the side.
Plugged into where she used to hang is some equipment not in Aperture's style, with cables running to the side and down to the floor where there is more equipment. The monitors that used to display images punctuating her futile nasty remarks have been turned around to face inward and are displaying densely packed changing text and tables and graphs.
And in the center of it all — yep, that's a human.
“Hello!”
“As my name claims, I am a jobont; my profession is that of supporting communication, and the availability of information. When I ended up here I gathered information, and I didn't like the picture I got, and this place is so automated that I can just command it to change and it does, so I can make this much of a difference and I am.”
And her pronunciation is still noticeably non-native.
“Sorry if that makes me sound more like that,” waving in the direction of the boxed GLaDOS.
"I don't really understand what's going on. Do you know where—what happened? I just wanted to leave, I didn't know anything."
“Unfortunately, the suspension was poorly maintained, and as far as I can tell you are the only survivor now.”
"...oh. And that was it. It just killed everyone and put everyone under suspension and then, what, woke—how many people did it wake up before me?"
"Oh." She pauses, digesting this bit of information. "I guess it's all moot now, since everyone's dead anyway."
"If it hadn't been me first, she might've killed whoever came before. She wanted to kill me, at the end."
“Unfortunately the monitoring systems worked through more AIs — not smart enough to be a threat, at least — so I don't have actual objective records, just effectively “everyone's fine” for years and years right up until now. And they're just — dead. Or rather, I can't tell the difference between what might have killed them and what happened over the rest of their time in suspension.”