i dont think so...
(i am 99% sure it cant be possible)
only case where u could reach something "close" is defeating GER and puppet it.
but it changes radicaly all the geopolitical context
(it creates DDR, delete Axis concept & contexts, etc).
HOIs stay deeply inspired by WW2 events
(maybe quite too much sometimes(?), there could be some width more to let scenarios open to real different evolutions...
as, whatever u do, u get out historical chain of events at one moment or an other or just simply by management choices u do for battles/wars/productions/diplo acts, etc).
...and the base about "3 big alliances" with each "3 big leaders" -deeply restrained by- cant be denied, unfortunatly
(...have a chance to see/make USSR & GER conquering the world together could be intresting and really fun to play or fight, i think).
but its not the case yet in HOIs (1-2-3), so... it will not happen, i think. (sorry)
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