Boosted Territories
Boosted Territories are territories that already have boosts in them. If you conquer them it would add another boost to your free boosts.
Gated or Blocked Territories
Gated/Blocked Territories would be impossible to conquer until a set number of turns has passed. For example you start on a normal territory which is dircectly next to a blocked territory. You could conquer other normal territories but could not conquer the blocked one until the set number of turns has passed.
(The number of turns required before blocked territories are unlocked could be set by the game host.)
Territories that boost your troop count for that turn.
Upon conquering a Troop territory would add a certain number of troops to your cap for the whole round.
So if you conquered a Troop territory with a +1 troop cap, and your troop cap was 30, for the whole game your new troop cap would be 31.
All of the above territories would be a toggleable option by the game host.