I think that's the play here. Mostly just ride this train as it is and enjoy it. Make sure you tell and show her how glad you are that she's back in your life. If she's interested in more, then she probably has similar concerns. Nobody likes to be romantically embarrassed..
You can try small things to see how she responds. Talk about needing a vacation. If she responds with "take one and visit me haha" then you know she wants to see you in person, but is playing it off as a joke in case you don't feel the same way. Start off light and watch out for these from her as well.
I imagine you're concerned with "missing your shot" like in TV and movies. "I gave him all these hints but he never made a move on me" just doesn't happen in meaningful relationships. If you're matching her level of engagement and responding honestly but gently, then you'll do fine. If she does pull this, then you'll have dodged a bullet.
The fact that you're reaching out for advice tells me that you truly care for and respect her enough to make sure you're doing it right. I think you're on the right track. The hard part is keeping your heart and hormones in check.
Whatever happened to antidisestablishmentarianism?