There has been no official statement regarding Kibum's return.
In November 2012 for their recording of a new album, Kibum will start to join the other Super Junior members back.
He is on temporary leave for his acting career. Although he is considered to be still in Super Junior, he has yet to come back after leaving in April 2008.
In the K-pop band Super Junior, I'm assuming? As you know, Kangin has left to join the military because it's mandatory in Korea, but will probably be back. Kibum left to pursue an acting career for the Bonamana 4th album, but will be back for the fifth one. Hankyung/Han Geng left for the reason of filing a lawsuit, and will most likely not be back, because him and the SMEnt company don't have good history. Also, mandatory military service is lined up for both Leeteuk and Heechul at the end of the year, so they will be out of the music industry for 2 years as well.
We don't know, but we hope he comes back!
Leeteuk (Leader) Heechul (in the military) Hangeng (Left the band in 2010, is now doing a solo career in China) Yehsung Kangin Shindong Sungmin Eunhyuk Siwon Donghae Ryeowook Kibum(Hiatus) Kyuhyun Henry (SJM) Zhoumi (SJM) Note: Eeteuk had been introducing Henry and Zhoumi as part of Super Junior during SS3-SS4. Some fans think they are now officially part of the group but some still consider them as part of SJM only. Also, Hangeng already left their company/group but most fans still considered him as part of the SJ family. Also, Kangin was BACK from his military service and would be joining their 6th album. Kibum's status (aside from dramas and magazine spread appearances) is still unknown.
Back for Good - album - was created in 1997.
Back to You - album - was created on 1997-04-22.
The Back Door - album - was created in 1992.
Back to Me - Cueshé album - was created in 2006.
Back to Babylon - album - was created in 1986.
No Looking Back - album - was created in 1983.
No Going Back - album - was created in 1979.