Shouldnt be too bad since it is on a Tues. If it had been a long weekend it would have been really busy. It wont be slow but it wont be real bad either.
I was there in 2000 on Veteran's Day and it was by far the most crowded day of our trip (we were there for 11 days). On Veteran's Day we were at MK. I would suggest a different park for that day.