-from the facebook blog you can notice it says later this years so maybe in june or start of september.
In addition, we can confirm Ice Cream Sandwich upgrades will be coming later this year to the HTC EVO 3D, HTC Incredible S, HTC Desire S and HTC Desire HD. Stay tuned for more updates on Ice Cream Sandwich releases in the coming weeks
this is from the comment section but i cant say its reliable
HTC replied to a question of a certain person who have commented on this blog that the Android 4.0 with Sense 3.6 Update for HTC Desire HD will be out on June, if that's the case, then why is that information not in this blog?
So in conclusion i think there is still a wait about a month or three. They better do it soon. Im about fed up witht he GB roms since most of them are being discontinued and becuase theres no official ics for the DHD, the ICS roms are not fully working as the GB roms. But hey, the devs have done a great work porting.