Here is the official announcement from sony blog.For our 2011 range, as you know, we began our Ice Cream Sandwich software upgrade with Xperia arc S, Xperia ray and Xperia neo V last month.
Now, we are happy to confirm that the remaining 2011 smartphones; Xperia arc, Xperia neo, Xperia mini, Xperia mini pro, Xperia pro, Xperia active and Sony Ericsson Live with Walkman will start to receive their updates starting from next week.*
This software upgrade will be Android version 4.0.4 and the good news is that this latest version will also be made available for Xperia arc S, Xperia ray and Xperia neo V users, who received Android 4.0.3 the first time around.
In regards to Xperia PLAY, after extensive in house testing with our developer teams and working with our partners, we have concluded that a consistent and stable experience, particularly with gaming, cannot be guaranteed for this smartphone on Ice Cream Sandwich – therefore, we will not make the Android 4.0 upgrade available for Xperia PLAY.
We have already received the official ICS 4.0.3 update already for arc S, neo V and ray and now these phones will get be getting the Android 4.0.4 .Now All the xperia series Xperia mini, Xperia mini pro, Xperia pro, Xperia active and Live with Walkman owners should be happy to read the news.As already announced previously Xperia Play will not be updated.Here you can check Link