As of the past 2 years, there have been many former idols from both the 48G brand (AKB48, SKE48, NMB48, HKT48, etc) & the 46G brand (Nogizaka46, Keyakizaka46, Hinatizaka46, etc) that have been made their debut in the Kpop realm
Starting off is Miyawaki Sakura (HKT48), Yabuki Nako (HKT48), & Honda Hitomi (AKB48) who all represent the J-Line of one of the top new girl groups IZ*One
Next is Takahashi Juri (AKB48), who is a member of the rookie girl group Rocket Punch from Woolim Entertainment (home of Infinite, Lovelyz, & Golden Child)
Then there is Takeuchi Miyu (AKB48), who is set to debut in SM’s subsidiary Mystic Entertainment’s girl group
There was also Chiba Erii (AKB48) who was part of the temporary international Kpop girl group project UHSN
As well as Yua Mikami (SKE48) who is in the all Japanese Kpop girl group Honey Popcorn
And there is Kawamura Mahiro (Nogizaka46) who is a member is member of the Kpop inspired Asian girl group Z-Girls
While not being part of AKS anymore, we could also include 7senses, a unit composed of SNH48 (Chinese 48G) members Akira (Zhao Yue), Bee (Kong XiaoYin), Diamond (Dai Ming), Elisa (Xu Yang Yuzhou), Kiki (Xu Jiaqi), Lynn (Chen Lin), & Tako (Zhu Yuge) who made their Korean debut
Some of them are still bound to AKB48, while others have graduated the group to make their Kpop debut
I love all of these artists but I thought this article would have some more info or something