I don't think there is a plan to standardize it. They "just" move the code from the Oracle repo to the OpenJDK repo. I wouldn't assume J9 or Zing will adopt this.
Opps, I believe you are correct. I haven't reviewed the proposal in detail, but are they planning to standardize the event generation side of things? (the parts exposed to running Java applications)?
I am not aware of any such plans. There is a supported API starting with Java 9 http://hirt.se/blog/?p=870 but it is "JDK" (Open/Oracle JDK and derivates) specific and lives in the jdk.jfr module and package.
