Wow! In using TurboTax for over 25 years, I didn't know that the "What-If Worksheet" existed! I see this year's sheet even has a checkbox for "Check to use 2023 tax rates." Typically, when I'm done with my taxes, I copy my TurboTax file, rename it with "Next Year's Estimate" and then update the numbers using projections for the following year. I usually update it periodically throughout the year until the next TurboTax year product is ready. However, this results in double entry, once into the estimated year and once into the real software when available. I'll just wait patiently.
