Hopefully a HoI to EvW convertor would (depending on what gameplay mechanics exist) try and make an actual cold war scenario (at least two superpowers). US vs Germany vs Japan. US vs Germany vs Russia. US vs Germany vs Russia vs Japan. Etcetera.
Similar to how Hearts of Iron FORCES you into world war, because the game is lifeless without it, East versus West (when converted from HoI) should FORCE you into cold war.
I really am hoping that Paradox fills out the timeline, though. We could have everything from Obama vs Osama to Ramesses versus Muwatali. (That doesn't rhyme very well...)