No, Shahid and Kareena are not back together in that way but they are back together for Boney Kapoor's 'Milenge Milenge'. This venture was shot in 2006 when Shahid and Kareena were very much together. However due to some complications, the movie could not be released. Nonetheless, the film complications have all been sorted out but since the the movie was shot a couple of years back, dubbing was necessary.
When requested, the duo agreed to dub for the film. Buzz has it that Kareena is done her part meanwhile Shahid has some portions left. This exciting Boney Kapoor venture is expected to hit theatres in the latter half of the year 2009
