ICUS time really?
Mig I don't know where you get this information from. Usually log as co-pilot time and as GearDown noted when you do line training you normally do ICUS if you don't already have enough command time.
The company I work for its 2000 hours total actually (despite the CAR requirements) with 250 command of which 250 x-country then the usual 100 hours night etc.
Of course this is at the discretion of the company and I would imagine this would be similar in other operations.
So GearDown to answer your question I wouldn't be surprised if and when the time comes when the low time FO's are required to be stepped up for command filling that the company would use their own discretion on some of the requirements eg. 2000 hrs. As for the command....not really sure?