The "new" version came out in January of this year. The next expected version would be January, 2021. So today's options should continue until then. Based on comments from those that have seen the elves making the Pro-V's at the plant, the numbers are stamped in production and then set aside for customization and/or ordering. Until the production volumes are justified, the yellow balls will continue to be in 1-4 or 1, 2, 3, or 4 only.