From just taking a quick look inside the data, there's data from KMS2 as late as early 2018. So it's likely that we're gonna get all the changes KMS2 (so to answer your question, yes) has gotten for CBT but certain things like high leveled content (anything over >50) and new classes will be blocked until OBT or official release.
do you happen to know if we get the restart update in gms2 right on release?
From just taking a quick look inside the data, there's data from KMS2 as late as early 2018. So it's likely that we're gonna get all the changes KMS2 (so to answer your question, yes) has gotten for CBT but certain things like high leveled content (anything over >50) and new classes will be blocked until OBT or official release.