Updated schedule (times are CDT).
On Saturday, there is a 4+ hour delay between the Sprint Shootout and the Sprint Race. Glad I'm not sitting at the track waiting for that. If you're a back marker team, with the potential to not score points, the two Sprint items are going to be a huge risk for damaging the car. With Qualifying now on Friday, how many people are not going to be able to attend, since a lot (in EU) still work on Friday? Imagine paying for your tickets months ago, only to find out yesterday that you are going to miss Qualifying, From what I gather, the Sprint Shootout and Sprint Race don't actually impact starting positions for the Sunday race, unless you incur penalties.
Also, the Sprint Race is going to start 2.5 hours later than the actual race is going to start. So conditions (track, weather, etc.) will be different than race time.