Nothing official has been announced about practice nights. We'll bring it up this weekend in the pits and see what the options are.
I suspect that Chuck and Doug would like to keep practice to a minimum between races to reduce track maintenance. It took 8+ people working on the track over a 3 week peroid just to get it to the point it is now.
Dont let that deter you from racing. The current track was designed to be so user friendly that you really won't need much practice to get up to speed.