Dirt country is closing for 2019. He is making major changes and will reopen in 2020. That was announced at the last race.
Treaty city is probably gone. Would be my guess. I hear windy ridge is in. Have not heard cocr brought up at all but if treaty is out, I could see them adding cocr for a try.
Hope they keep the race schedule similar to this year. The races were spread out a little more. They tend to like racing into October when most people are done. Anymore weather in October is great. Just lose daylight early