-dont make isengard part of the campaign weel actually just dont make saruman controlling isengard because saruman betrayed sauron in the books and sort of in the movies so the only way i think isengard would be in this is if the mouth of sauron got isengard because he would have and he found sarumans secret "recipes" for his urukhai (no mouth of sauron did not die ,that was only in the movies
-make a mordor siege of helms deep

-include the orcs of the north(goblins) in a way but not in a super powerful way because they were wiped out in the war of dwarves and orcs and the battle of five armies
-mouth of sauron should have a magnificent role in this
-make gandalf escape from the black gate because he had one of the elven rings (cirdan gave him the ring of fire) and he makes his last stand at mithlond(grey havens) so each of the elven kingdoms would be hard to conquer,mainly lothlorien,rivendell, and mithlond because each ruler of them had a elven ring,but then again they wouldn't use it because sauron had his ring
-definitly a reconquering of isengard

-if you are gonna include saruman's isengard make it a completely different campaign where SARUMAN got the one ring because he probably would have been able use it,
Just letting you know i think this looks good mainly because of the campign but i wouldn't mind new things



