Hello user_4229637!
Instead of taking the R&S certification, now you can do the HCIx Datacom Certification. It covers most of the R&S topics plus new technologies like IPv6, SDN and NFV, network programmability and automation, WLAN.
You can find all the information about the HCIA Datacom certification in the following link:
https://ilearningx.huawei.com/portal/courses/HuaweiX+EBG2020CCHW1100085/about.
Regards