HTC has released a list of phones that they will be updating to Android 4.0 this year. Along with the names of the phones, they also mention the time period during which you can expect the update to arrive for the respective handsets. Here is the Table Below:

Device Schedule DROID Incredible 2 by HTC To be determined (by the end of August) HTC Amaze 4G May-June HTC Desire S June-July HTC Desire HD July-August HTC EVO 3D June-July HTC EVO 4G+ May-June HTC EVO Design 4G June-July HTC Incredible S June-July HTC Sensation March-June HTC Sensation 4G March-June HTC Sensation XE March-June HTC Sensation XL April-Jun HTC Rezound June-July HTC Rhyme June-July HTC Thunderbolt July-August HTC Velocity 4G March-June HTC Vivid March-June

Note That these dates are targets and may shift due to testing and approvals.