Sony Xperia T and TX users will be happy to know that Sony is rolling out Ice Cream Sandwich (Android 4.0.4) firmware on both devices. According to Sony Update will be available Globally along with new features and functions. Global update release may not applicable to Carrier or licked phones.
Sony will provide you these new features along with ICS Update:
From here who owns Sony Xperia T and TX? and we will let you know when update rolls out in any region.
Source: Sony