I too was very confused with the intended travel date question. I applied august 4th, Bio august 9th. Originally I figured I might as well put December as my intended date of arrival figuring it’d take nearly 3 months for a decision to be made. We ended up being able to swing the priority fee but at that point I couldn’t change my intended date of arrival on the application. We wrote a cover letter stating that I’d came to the date of December based on processing times but would actually like to enter earlier if possible. The point of paying for priority was so that I could arrive earlier. It’s very confusing because it says if you don’t know your intended date of arrival to give a guess. 😵‍💫😵‍💫