Samsung has officially announced the devices that they will update to Android 4.0 Ice Cream Sandwich and the dates expected. Samsung Electronics stated the devices and plans for them in their official blog:

Samsung Electronics plan to provide the Android 4.0 Ice Cream Sandwich update for GALAXY devices. The platform update for GALAXY S II and GALAXY Note will start in the first quarter 2012, and other GALAXY devices will soon follow.

The ICS-upgradable devices are the GALAXY S II, GALAXY S II LTE, GALAXY Note, GALAXY R, GALAXY Tab 10.1, GALAXY Tab 8.9, GALAXY Tab 7.7, and GALAXY Tab 7.0 Plus.

According to a press release from Samsung Electronics the upgrades to Android 4.0 Ice Cream Sandwich scheduled to start between January and March 2012.