Good run! Genuinely I think there needs to be more railroading to force the winner of equstria and griffonian to come to blows, its a fun clash of the titans situation. I do hope the zebra guys get a continental unifier that can oppose the major factions of the other continents.
the plan (somehow) is to conquer all of equestria myself, and then use that to go back and conquer the rest of griffonia. you know. for peace
but yeah i've kind of been expecting a megablob to emerge on zebraland but that keeps on not happening
Zebrica is clearly underdeveloped compared to the other two continents, and it doesn't help that the main player on the continent, the Land of Kiria (not-China) is mostly concerned with dealing with internal strife.
Fun fact: the dominant species of Kiria, the kirin, were created solely because the crew of the MLP show wanted an excuse to have Rachel Bloom just Do Her Thing for an entire episode.
you're not wrong about an equestria-griffonia war being kind of what ought to happen unfortunately i think given the way players work, by the time you have your first continent, the second is pretty easy
A better way would probably be an invasion from Zebrica since that's literally what happened in the movie. Unfortunately the Storm King gets turned to stone and shattered at the end of the movie, but surely you can make up some lore about someone trying to revive his legacy?