Almost certainly increases it, but not clear how much effect it will have since it’s only available for vehicles that are resold for the first time. Basically if you buy an EV it will be optimal to hold it until the price drops below $25k before reselling/trading it in. Unfortunately, virtually all leased EVs will be returned before they drop below $25k. When I was EV shopping, most had residuals in the low $30k range, so those EVs will never be eligible for the used tax credit. In short the limited number of vehicles that will be eligible and the limited number of customers who will qualify is likely to limit both the usefulness of the credit and its effect on the used market/residuals.