Next year, 2013, Heechul’s coming back and Yesung’s gonna enlist.
The year after, 2014, Shindong and Sungmin are gonna enlist while Leeteuk’s coming back. Just to clear up any confusion, I know that Sungmin is in the 86 line and that he’s not supposed to enlist until the following year, but Sungmin was born before March 1986, which technically makes him part of the 85 line (in Korea, anyway).
In 2015, Yesung is coming back while Eunhyuk, Siwon and Donghae are going to enlist. Although Siwon’s registered birth date is in 1987 (and his real birth year being in 1986), either way, he’s in the 86 line, thus having to enlist along with Eunhyuk and Donghae.
In 2016, Shindong and Sungmin are coming back while Ryeowook, Kibum and Kyuhyun are going to enlist. Much like Sungmin, Kyuhyun has an early birthday, making him the same age as Ryeowook and Kibum (again, in Korea only). Because of all the injuries he’s sustained in the past, Kyuhyun is probably only going to receive one month of training and afterwards, become a public service worker, like Heechul. Ryeowook, Kibum and Kyuhyun will be back two years after, in 2018.
2016 is the last year in which a Super Junior member is going to enlist. They’re going to be all together once again in the year 2018. ♥