I have no idea about the current rotation, but in (late) 2019 many designs came and went quickly. Well, some designs sold out very quickly. And maybe showed up again a week or two later. Less popular designs stuck around longer, but all of them changed over time.
If there's a specific band you really want, I'd order now.
Another catch is, or at least was when bands were included, was that your order was all or nothing. By that I mean- at least in prior days, you couldn't split your order if there's more than one person in your party. Part of why I watched for several weeks, was that the band offerings changed daily. So band A would be offered Monday, but not Tuesday. Band style B would be offered Tuesday, but not Monday. So every day was a roll of the dice which bands would be offered.