He's definitely about the last person she's expecting to see here, considering this was a new universe entirely. She does recognize him after a moment as the vigilante rumored about in news videos. She slows as she sees him, but her instincts to check on Reinhardt are much stronger than her hesitance for someone attacking former Overwatch outposts.

She clears her throat to announce her presence, keeping her distance because he's kitted out and she's wearing a blouse and jeans.

"I wonder if we might be waiting on the same person." Which makes her wonder, what would he want with Reinhardt? Or is there someone else in there that he's waiting for?