The HTC Sensation
XL has finally begun to receive the update for Android 4.0 Ice Cream Sandwich in Europe. HTC Sensation XL owners in Romania have already begun to get update notification for the Android 4.0 Ice Cream Sandwich and should be reaching other European countries as well.
The update will update your device to Android 4.0.3 as well as Sense 3.6, which will give you a few small improvements overall. If you haven't received your notification for update yet, you can manually check and download the update.