You have to use some Google-fu but you can go to the Singapore English site and view Google cache.

https://www.dji.com/sg/robomaster-ep/faq+&cd=5&hl=en&ct=clnk&gl=us]https://webcache.googleusercontent.com/search?q=cacheQ79QzFOclEJ:https://www.dji.com/sg/robomaster-ep/faq+&cd=5&hl=en&ct=clnk&gl=us[/url]

Some great info regarding compatability with S1 for instance.

Can the RoboMaster S1 be upgraded to become the RoboMaster EP? Can I use the new functions of the RoboMaster EP by mounting the related accessories onto the RoboMaster S1?

No. RoboMaster EP is an educational robotic expansion kit based on the DJI RoboMaster competition and integrated with a full set of educational solutions. The RoboMaster S1 cannot be upgraded to a RoboMaster EP, but DJI does offer a developer program to interested developers where open DJI SDK is available. For more application information, please follow the official DJI page on Facebook.

It answered some of my burning questions.

Proper link here:

https://www.dji.com/sg/robomaster-ep/faq+&cd=5&hl=en&ct=clnk&gl=us]RoboMaster EP FAQ[/url]

Ok I give up trying to  get a link to work on this forum.

Just search for RoboMaster EP and grab the Google cache of a result from

https://www.dji.com/sg/robomaster-ep

Yeah, not very reassuring. I guess the S1 fate is to continue being artificially limited.