You bring up good points. Yes it should help account for the features, and definitely analyze regional blocs and transitional relationships. Transitional relationships would relate to 'evolving dynamics' mentioned in the question, and further elaborate on the system of 'poles'. Analyze how this would affect the US which has establish its hegemonic order in the region, and how the emergence of a new 'pole' (China) can lead to countries in the region gravitating toward the new 'pole'. This would also be true of Brazil on South America, and Russia on Eastern Europe and Central Asia.