Wait for better APR?

Current promotion of 3.9% for 48 months ends at the end of this month. I realize no one knows for certain what incentives Kia may offer next month but is it worth gambling hoping for a better promotion rate? Honda is currently offering 2.9% and Kia offers up to 0% currently on other models. Could go either way. I don’t “need” to make a decision until mid May when my current lease runs out so o have some time. Thoughts?