Found this but it doesn't say when. this is off the update page on moto site.
A note about Ice Cream Sandwich:
We are planning to upgrade DROID RAZR™ by Motorola, Motorola RAZR™, Motorola XOOM™ (including Family Edition) and DROID BIONIC™ by Motorola to Ice Cream Sandwich. We will provide more precise guidance on timing after post-public push of Ice Cream Sandwich by Google, as well as any possible additions to this list of devices.