Speaking from experience, trading a new car in on another new car that's almost exactly the same is not, financially, a smart decision.
As someone that could afford to make that dumb decision, I had zero regrets for having made it. Whether the incurred cost is worth it to you or not won't fully be known until you run the numbers at the dealership. It never hurts to look into it, minus the credit hit for the inquiry, and no one on this forum will be able to give you those actual numbers.