HTC has released a list of its handsets that will get an Ice Cream Sandwich update… Android 4.0 . See list below

1. DROID  INCREDIBLE 2
2. AMAZE  4G
3. DESIRE  S
4. DESIRE  HD
5. EVO  3D
6. EVO DESIGN  4G
7. INCREDIBLE  S
8. SENSATION
9. SENSATION  XL
10. SENSATION  XE
11. SENSATION  4G
12. RAIDER
13. REZOUND
14. RHYME
15. THUNDERBOLT
16. VIVID

These updates will be available over a period of time.

Source