Given that they wouldn't do it if they didn't expect it to be profitable, and this movie has been shitting money by the bucket, the answer is probably yes.
I imagine for some it will be an opportunity to see it for the first time since it will go on past the normal theatrical run, and for others it’s an excuse to go see a movie they enjoyed again. It’s less about giving you a single reason and more about nudging you to get back out and see it again/push last folks to go who got FOMO.
It’s also an excuse for them to extend the theatrical run but make it sound like some new phase/event. Much easier to market, much easier way to get people’s attention. 
Surprisingly to me, I’ve heard of a few people seeing it multiple times. Not that I dislike it, just that I’m not the kind to see a film more than once in the cinema generally, and Barbie didn’t strike me as the film that would prompt people to do so … though when I asked it made sense.
Heck yeah! That movie was a delight with catchy music and entertaining choreography, plus it was refreshingly bizarre while also being relatable. I don’t normally watch movies more than once, but I was planning to watch this one again once it came to streaming. My boyfriend hasn’t seen it yet so this is just enough of a reason to bring him to the theater instead of watching at home. Besides, Dune has been delayed and that was the next one we were planning to see in the theater so it will be a while before we visit the theater again.
I feel like the phrase “never before seen” is kinda rich for a film that’s still in cinemas. It holds weight when it’s a decades old film, but for most of the world all of the footage in the film is never before seen.