Talked to someone at TurboTax and they said anyone filing with a draft form is absolutely playing with fire. He suggested I remove the EV Tax credit form from my return, submit it and wait for that refund. Once I get my refund and the form is officially available, do an amendment and add the 8936 form, submitting again for that refund. The amendment process is all built-in apparently. Considering how much money I'm waiting on for my base return, I'll likely go this route.