Edit: China first reminds me of the old days of Japan first where the JDM would get exclusive models withheld from the world at large or for a number of years until later....even after the technology was compatible.
I expect to get the Performance Kit because I could use RC-N3. I am hopeful some of the non-standard accessories are compatible based on overall size and fit but I don't expect batteries and filters to be compatible with NEO1 but RC/MC/Goggles...