a leaked screenshot revealed that the update would be coming to the phone. As for timing, an earlier Sony Android 4.1 update road map indicated that the update would probably not take place earlier than April. But Sony Germany apparently has some up-to-date information on when the handset will be Jelly Beaned and for owners of the Sony Xperia S, it is good news.
In a rather straightforward statement sent via a tweet, the German based office for the Japanese manufacturer said "we will begin the rollout of Android 4.1 for the Xperia S in late March." Of course, this translated statement probably applies to those in Germany or in the region, sporting the Sony Xperia S. But we would expect the rest of the globe to not be that far behind in receiving the update that will bring Project Butter, Google Now and more to the phone. Even though the Sony Xperia S no longer commands the respect it once did, just remember that only 13 months ago this was Sony's flagship model.
source: SonyXperiaDE, XperiaBlog via IntoMobile