Here is the official statement from Nitrocross, published 24-10-16
Nitrocross 24-25 Season Update
To our dedicated fans,
We want to extend a heartfelt thank you for your incredible support and enthusiasm throughout the season. You’ve been an integral part of everything we’ve built and will continue to build at Nitrocross.
Unfortunately, we must announce that upcoming events in Phoenix, Miami, and Las Vegas, have been paused and will not continue as scheduled. Any further news on the 2024/2025 season will be communicated at the appropriate time.
If you have purchased tickets for any of these events, rest assured that you will receive a full refund automatically via Tixr. We appreciate your understanding and patience as we work through this process.
We remain committed to exploring new opportunities for the future of Nitrocross and motorsports. Thank you for being with us on this journey, and we will see you again soon.
Stay tuned for updates.