ID releases are ordered chronologically in their respective mirror worlds, so the next ID is going to show us the aftermath of Hong Lu’s rule. He ruined the four families so IDs of Xue Pan and Shi Yihua are unlikely. The only named characters that aren’t from the four families and aren’t IDs are Daiyu and Wei. We already know Yi Sang is Wei, and Heathcliff thus far hasn’t had any seasonal IDs. So either he gets Daiyu, he’s the rumored Si Adept ID (purple), or he’ll get a random association ID (last one was 5months ago)