No dictatorship. The fighting will not likely end until the Constitution, and strict interpretation thereof, is restored.
Just as likely though, well face fractious civil wars fought over issues weve not begun to fathom, and a much diminished state or states will result, perhaps guided by foreign interests.
Certain politically "blue" states/regions will likely be expelled from a future union, with massive population shifts of those still seeking Liberal Utopia and those preferring a Constitutional federation.
I hope you are right. That is best case, and worth fighting for.
Can you name a single instance in the last 2 centuries where a civil war ended and the losing side merely was "expelled" from the resultant union? Sorry, that's not how it happens. When the loser is finally done fighting, they are still brutally treated, thoroughly punished, constantly humiliated, and utterly subjugated. The hellish war that we are likely to have is going to be vicious, and the winning side will NOT be forgiving to the loser for making the war happen. (Winners write the history, and they rarely write that they started it.) IF we have to go through CWII, and IF the Left loses, then the "blue" areas like New England are certainly NOT going to be excluded from the renewed union. They just will have no power, will have clearly different rules to live by from the "red" areas, and will suffer for at least a decade.
And if the "red" states lose... the vicious mistreatment by the winners will be astounding, shocking, and unreal.