Random idea: "zones" - static areas on the map that provide unique auras?

I love everything about HoN even though I am completely terrible at it.

One thing i've been thinking about lately is the boringness of FOC. We've had a lot of discussions about different maps potentially coming and how the other map in the game isn't very popular on this reddit; but one thing i've never heard discussed (and maybe I just missed it) is the idea that we could have "zones" on the map where unique things take place - increased mana regen, decreased HP regen, a pulsing silence ala vindicator, slowed or dramatically speeded up movement speed, +dmg on spells, etc. I'm thinking a 400-800 radius. Maybe you could even have a situation where each tower was responsible for a bonus given to the team to make the game more dynamic, and loss of that tower would reduce or eliminate the bonus.

I'm sure this idea might imbalance things horribly, but I wanted to toss it out for discussion to hear people's opinions on it.