I don't think most of these will actually happen but lets see
Twice:
- J-line unit will debut in Feb or March with an elegant concept and a EP with 5-6 songs
-Twice will comeback in June or July with a summer concept and a EP with 7 songs
- Twice will release 2 Japanese comebacks one in May and one in October
-Jihyo will go solo and her solo will be released in September with a jazzy concept
- Red Velvet will comeback in June or July (it'll be a summer concept) with an EP with 7 songs
-Red Velvet will comeback in November (it'll be a velvet concept) with a full album which won't be pure velvet it'll be a mix of red and velvet songs
-Yeri will sing an OST for a drama
-Seulrene subunit comeback in March with an ep with 6 songs
-Their comeback will flop and the song won't end up being that good
-After the comeback, they won't do many group activities
-BBC will try to give more promotions to less popular members like Go Won, Yeojin,etc
-All members will leave BBC in July or August 2023
-Loona will release one last digital single under BBC which will be a ballad
-Loona won't disband but will go on a indefinite hiatus
-Chuu will debut solo in March-April and it'll do really well
Other kpop predictions:
-Blackpink will have one comeback (probably in the summer) again with a brighter concept as well as an EP with 6 songs
-Jisoo will debut solo
-Momoland will disband
-WJSN's C-line will officially leave the group
-Weeekly will comeback with a different concept not cute or not like Ven para
-Weeekly will get their first win
-Bebez(BBC gg) will debut after Loona leave BBC
-More 4th gen bg's will be popular
-NMIXX will have a comeback with a new-ish concept
-NMIXX will get their first win
-ITZY will debut a sub unit with 2 members
-Two 3rd gen idols will get married
-Yg's new GG will debut in late 2023
-2 popular 4th gen girl grops will collab
-More idols will end up leaving their groups
-There will be a scandal involving a famous 4th gen idol
-An underrated 4th gen group will become very popular due to a viral moment
-Wonder girls will have a reunion (not with a song) but they will do something together
-A famous 3rd gen girl group and boy group will have a shocking disbandment
I hope it will be came true. 
