The latest Sony test Android 4.0.4 firmware build for 2011 Xperia devices has leaked over at xda-developers. It is apparently a port of the Xperia pro release and works with the stock kernel and latest baseband. It hopefully suggests that Sony Mobile is working on an Android 4.0.4 update at some point down the road for the 2011 Xperia devices.
The firmware is provided as it is, so you should expect bugs if you decide to use it. The version offered is pre-rooted and includes Busybox. You can find all of the information here.
Thanks Rob!
![First new firmware in months is certified for the Xperia PLAY [4.1.H.0.23]](https://www.xperiablog.net/wp-content/themes/thesis_189_new/lib/scripts/thumb.php?src=http://www.xperiablog.net/wp-content/uploads/2017/07/Sony-G84XX-Model_2.png&h=142&w=142&q=75&zc=1 "First new firmware in months is certified for the Xperia PLAY [4.1.H.0.23]")