It's weird this is not on over.gg yet, but OGN has announced last week that super match between top tier Korean teams and Chinese team will take place in October 15th (2PM, KST).
Originally, Miraculous Youngster and LGD were invited, but LGD has declined the invitation. So Lucky Future will replace LGD.
Lunatic Hai vs. Miraculous Youngster
AND
C9 - Kongdoo vs. Lucky Future
Final between the winners will follow it seems. I was so disappointed to not see top tier Korean teams in this year's APAC, but I guess we will see at least few matches of them against top Chinese teams.
Sources:
http://program.tving.com/ogn/supermatch/2/Board/View
https://twitter.com/RallyJaffa/status/911185000984322048
Discord