The ITC will be conducting an investigation looking for possible patent violations. When Hillcrest was asked what they wanted to happen as a result, they said that they would like a "cease-and-desist" order on Nintendo. Just because the ITC has decided to take an action on looking into the possibility of patent violation, doesn't mean that they have made any decisions on the case thus far.
With the extreme popularity of the Nintendo Wii, this could possibly have very bad effects. If the case is ruled in favor of Hillcrest, the worst case scenario could include Nintendo having to stop selling the Wii, and its remotes until a settlement is reached.