There are variety of ways to change how objectives behave to create additional map variety.
A map could have more VPs on it, but those objectives themselves turn off after a number of turns of being contested or left without an active objective holder.
VP’s as Hazards
A VP could be similar to a colosseum, units inside have restrictions to movement, incentivizing committing to fights within short distances.
A VP could be similar to a field of alien flora, causing periodic damage when a unit moves within, units killed could heal units within while applying other useful buffs.
A VP could pulse an area of damage to units in the surrounding on ownership change, to those that capture them.
VP Drain’s HP, or and Cinder, To Activate A Ability
A VP could drain a unit’s HP in a pool to achieve a goal based on map design. Crew’s that benefit now have to decide between normal play vrs paying the price to activate the ability. Captain’s could be an interesting variable where Cinder, and or HP could replace the resource drained, or add a modifier for how much is accrued.
VP’s Replace Ship Based Abilities
Holding an objective could charge up a VP specific ability I recommend recycling the ship based abilities for these effects.