EscA and Leetaejun are reportedly playing PUBG for KSV - company that owns Seoul spot
https://dotesports.com/pubg/ksv-pubg-team-esca-leetaejun-18435
but article is very unclear
"I'm happy to continue being a part of KSV," EscA said. "PUBG is a unique game that is growing quickly and I'm looking forward to making amazing moments with my future PUBG teammates as I did with Lunatic-Hai."
suggests esca is switching all together but the ending
KSV confirmed that both EscA and Leetaejun will attend the send-off event for the Seoul Dynasty team on Nov. 18 before they leave for the Overwatch League's preseason. The final roster of KSV PUBG will also be announced at that event.
suggests its only one time thing, for now we can just wait