Maya went to the rooftop the first time the world ended, due to it being a trope in the stuff she's read, according to herself:
She later adds that it is a "denpa trope":
And that she was unable to remember her way to the rooftop for however long it took her to get used to it:
It's also been implied that the rooftop was a meeting place for Sensei and Maya, so that may have played a factor, and probably still should.
Overall: New Maya should think similar and head towards the rooftop if Maya Prime was telling the truth, and she's able to. Although, it depends on where and how the reset starts for her, and if the conditions have changed or not.
Of course, based off Red Eyed Kaori, and how Maya Prime had no idea who Kaori even was:
Plus the extra students, like Noriko in particular, that weren't around back then, the circumstances for Maya Prime getting to the roof were surely different.
New Maya might even just get slaughtered on her way to the rooftop, like Yumi seemed to.