I watched the old version first and after watching this one it felt like a Sequel to me as in the ending of the old version it was kept open for viewers then the movie but I believe we can consider this a adaptation as well as Sequel as well
New article didn't have a set release but it was said before that it was planned for to release in the first half.…
Mostly Wed-Thurs slots are 12-16 or sometimes 20 eps Kdramas are allotted but when the Kdramas are 32 eps then 2-2 eps on Wed-Thurs means 4 eps per week. This concept has already being done on other Kdramas with 32 eps such as Justice, Soul Mechanic, Dr. Prisoner etc. So if they go as planned then 24-Hour Gym may follow up in May if possible.
i wonder if we will ever get a designated bully kdramai guess it depends on weak hero s2 and study group's success
I'm still reading the Webtoon Designated Bully hoping a kdrama on it. Also expecting webtoon kdramas such as Juvenile Offender, Manager Kim, and recently Judge Lee Han Young webtoon will also have kdrama with Ji sung in it
Motel California is streaming on Viki from Jan 10 Undercover High School, Bunny & Her Boys is also allotted to Viki so this will also come on Viki as well if possible Netflix might be secondary platform but I believe it will streamed on Viki
K-Drama 
Undercover High School, Bunny & Her Boys is also allotted to Viki so this will also come on Viki as well if possible Netflix might be secondary platform but I believe it will streamed on Viki