Good news! The Android Ice Cream Sandwich update with Sense 3.6 is now available for the HTC Sensation and Sensation XE for some customers in the Nordic region. There was a report earlier which said that HTC will be launching the new update for its Sensation series in March, and it seems it has kept its word.
So this means that other regions should start receiving the update soon.
HTC headquarters have confirmed that company has started the roll-out has begun and b the end of this month, almost all Sensation devices should receive some ICS goodness along with Sense 3.6 on top.
Do keep checking for your updates as they might arrive anytime soon, and do let us know if you manage to update your Sensation devices.