There seems to be a growing interest in writing plugins to support scripting languages that can be compiled into Java bytecode, see:
I'm sure some of us would really appreciate it if someone at JetBrains could confirm once and for all whether Aurora's or Pallada's OpenAPI could allow such a sophisticated integration as the one described in the above thread.
Perhaps a related question would be whether the current AspectJ integration could be written (or even released!) as a plugin.
I look forward to your answers.