I think that the Pacific does not lend itself to company level based games. There were relatively few clear company vs. company battles compared to the other theaters. Sure, you could have scenarios from Guadalcanal, Okinawa, Malaysia, the Philippines, and parts of China. But the majority of the battles fought were actions carried out by spread out units where command and control was almost nonexistent. For all of those beach landings, and small unit ambushes, officers played a small role. Battles were won by groups of two or three men taking the initiative and assaulting the enemy and freeing up the advance for a few dozen meters. Fighting also took place at much closer range. Many battles devolved into hand to hand fighting. Bayonet charges would have to be modelled as well. Hard to do with the current system. Maybe with a squad based game, but for CMx2 I will be happy with Europe.
Plus, no armor vs armor worthy of comment.