So today at work the new reset of the betta planogram was due, and in addition to a change in layout, there was a new flipbook about varieties of bettas (which I had seen weeks ago) and, more interestingly, a whole host of new price stickers for a whole new selection of bettas!
I don't know if this will be company-wide, available in all stores or just some, etc. but apparently some Petco stores, at least, are going to be expanding their betta selection! None of the new ones have come in yet so they're not yet in stock at my store, at least, but we now have price stickers for:
Plakats, halfmoon plakats, halfmoon doubletails, king halfmoons, and a couple of others that I can't recall off the top of my head (doubletail plakats, I believe)? I was busy so I didn't get to look over all of it as much as I would have liked. As you might expect, though, some of them will cost you a pretty penny more than a veiltail or even a crowntail.
It's possible that your local Petcos may have these in stock already, but like I said, mine doesn't, so I'm not sure what the status of other stores is. The prices are on our shelf now, though.