Not necessarily ever, all new LEAPS came out last monday. Maybe IBKR will be included later when it exceeds certain tresholds again...
Suggest you email marketservices@cboe.com As @qwerty11 mentioned, new equity leaps came out last Monday. This email should be able to give you more information. On a side note, some new index leaps, the 2022's, such as the SPX should come out in December.