It appears that the first round of conductor bingo is in the bag.
Sir Simon Rattle "is understood to have accepted the post of principal conductor of the LSO. According to industry sources, Rattle, who is married to Magdalena Kozená, the Czech soprano, will succeed the Russian-born Valery Gergiev in the role. The LSO refused to confirm or deny the rumours."(Richard Morrison, The Times)
Gergiev begins his new job with the Munich Philharmonic in 2015. Rattle's contract with the Berlin Philharmonic runs to 2018, but presumably he could manage two orchestras for a while if he gave up some of his other commitments.