The best indicator will be the numbers for "A Quiet Place 2" and "Cruella" this weekend. They're not a perfect comparison, since they're not also available for no extra cost on streaming services, but they should give a sense as to whether people are motivated to return to movie theaters. (I've already reserved me a spot to a Thursday night showing for Quiet Place.)
I've been thrilled to start returning to my local theaters this past week, now that I'm vacced up, but I love going to the movies and I use the AMC A-List, so it's a relatively low cost on my end (and AMC itself only ever loses money on me). There is nothing I find so amazing as laying back in a true reclining seat (not the half-recliners that AMC has started pretending are real recliners) and gazing up at a giant screen for a movie that rewards the effort.
That said, I didn't bother going to see "Those Who Wish Me Dead" in the theaters, and that was the right call... it's a so-so film that looked and sounded good enough on my home theater. But with "In the Heights", I'd put the odds at pretty high that I'll go to the theater.