Earlier today via its Facebook page, LG announced that it would be bringing ICS to a number of "high-end" devices, including the Optimus 2x, Optimus Black, Optimus 3D, and Optimus LTE. Other LG devices are still on the chopping block, as they are currently being evaluated "to determine whether [ICS] is compatible with the functionality, features, and performance of other LG smartphones."
More details, including an upgrade schedule and specific model information, should be available and posted on the LG Facebook page sometime next month. We'll be sure to keep you posted as more information shows up.
[LG Mobile Facebook; Thanks, Micah!]