I tend to agree with you, our rotation is very static and somewhat boring (once you get the hang of it).

I personally would like to be able to incorporate something affecting our aetherflow (like you stated above). Decrease the Cooldown on Fester, make anything that uses Aetherflow an instant crit, reduce the cooldown of the next aetherflow, etc.

One ability I also would love to see the dev's implement, though I highly doubt they will, is a cooldown that's 1-3 minutes where it will instantly apply a Bio II, Miasma, and Bio to a target. This would help us with our ramp up time at the beginning of a fight, OR if we need to put out some burst in a short amount of time.