I know it doesn't really fit, but I definitely hear the beginning of "Immigrant Song" here (maybe because we just heard it epically used in another new trailer?) Looks like Rey is about to lay down the law on the universe here.
Seriously if this shot doesn't remind you of Vader, you're cray. If you listen closely, you can hear what sounds like Leia in the background. Anyone have some good headphones they can lend me to hear this better?
Running a hand over the Jedi symbol, we hear Rey finish her answer. The balance has been in jeopardy for quite some time. Is Rey the one to bring the universe back into balance? Wait, is that even Rey's hand? Gloved like that it I imagine it could be Luke's or even Finn's.
This looks like the exact R2-D2+Luke scene we saw in "Force Awakens" in Rey's Force-flash. The pair are likely in front of either the first Jedi temple, or surveying the aftermath of Ben Solo-turned-Kylo Ren's purging of the Jedi.