I would add to your list:
- pre-produced dramas are becoming a real trend in Korea; there were so many released last year and there are still more filming as we speak... 2016 opened with Cheese in the Trap and ended with Hwarang...
- China banning Korean TV Content, Talent - I think this will have a huge impact in the near future and it is happening already (Hwarang was dropped at episode 3)
- and since we are on China topic they also banned the BL series you mentioned... talk about killing a budding trend...
You mentioned manga and webtoon adaptation, but let's take a moment to remember 2016 also brought an interesting trend of producing adaptations of American shows: Entourage, Good Wife, Cold Case... and I hear KBS plans on remaking the popular American crime drama “Criminal Minds.”
2 
TRAILER: https://www.youtube.com/watch?v=3wEJ_T8hovw
http://www.hkcinemagic.com/en/movie.asp?id=12121
TRAILER: https://www.youtube.com/watch?v=7_-yY3YW41U
http://www.hkcinemagic.com/en/movie.asp?id=12140
http://www.hkcinemagic.com/en/movie.asp?id=12125
https://movie.douban.com/subject/25945280/
http://www.imdb.com/title/tt4076934/
http://www.hkcinemagic.com/en/movie.asp?id=2019
https://movie.douban.com/subject/26941206/
http://movie.mtime.com/238213/
Priyada Sittachai - Mhai
Adisorn Tonawanik - Toey
Midori Tamate - Yumi
Kritsana Maroukasonti - Oat
TRAILER:
https://www.youtube.com/watch?v=pOjhQhDTfAs
https://www.youtube.com/watch?v=PCt_Vuk0WV0
OST:
https://www.youtube.com/watch?v=RN7MRcrL4bY
http://www.imdb.com/title/tt5855402/
https://www.facebook.com/presentperfectthaifilm/
http://seoulbeats.com/2016/03/rise-of-the-pre-produced-drama/
http://movie.mtime.com/236273/
https://movie.douban.com/subject/26592942/
http://chinesemov.com/2016/Love-Studio.html
Motoya Izumi - Ninsho
Emi Kobayashi
Toshiki Ayata
Yoji Matsuda
Mitsuho Otani
http://www.kaerucafe.co.jp/ninsho/
http://eiga.com/movie/85775/
http://www.narahaku.go.jp/english/exhibition/2016toku/ninshou/ninshou_e.html
http://ichie-movie.jp/
http://eiga.com/movie/85834/
http://www.mtv.com/artists/miyuki-nakajima-1/biography/
http://bokugoha.com/
http://eiga.com/movie/84228/
https://www.soompi.com/2016/12/11/kim-hyun-joong-ex-girlfriend-going-back-court-january/
- pre-produced dramas are becoming a real trend in Korea; there were so many released last year and there are still more filming as we speak... 2016 opened with Cheese in the Trap and ended with Hwarang...
- China banning Korean TV Content, Talent - I think this will have a huge impact in the near future and it is happening already (Hwarang was dropped at episode 3)
- and since we are on China topic they also banned the BL series you mentioned... talk about killing a budding trend...
You mentioned manga and webtoon adaptation, but let's take a moment to remember 2016 also brought an interesting trend of producing adaptations of American shows: Entourage, Good Wife, Cold Case... and I hear KBS plans on remaking the popular American crime drama “Criminal Minds.”
There were so many scandals involving actors: https://www.youtube.com/watch?v=qqraAiWXtE0
http://mydramalist.com/people/690-uhm-tae-woong
http://mydramalist.com/people/233-kim-hyun-joong saga continued
but also a happy couple that started in dramaland and ended up in real life: Ahn Jae Hyun & Gu Hye Seon from http://mydramalist.com/11350-blood-2015
https://www.soompi.com/2016/12/30/watch-take-glimpse-ahn-jae-hyun-ku-hye-suns-newlywed-life/
This is so drama material LOL, it took them less than a year to date and tie the knot. As opposed to another couple (Jung Woo & Kim Yoo Mi) that finally married after 4 years of dating since their movie http://mydramalist.com/7736-red-family
And I have a feeling another couple will follow: Lee Sang Woo & Kim So Yeon from http://mydramalist.com/16146-happy-home
Also several other acting couples made the news: Lee Sang Yoon & Uee, Joo Sang Wook & Cha Ye Ryeon, Shin Ha Kyun & Kim Go Eun, Luo Jin & Tang Tiffany, Hyun Bin & Kang So Ra, Kim Ju Hyuk & Lee Yoo Young
I even have a list for this haha: http://mydramalist.com/list/pLZDayw4