All of the HACs have been augmented with a new role bonus that reduces the signature radius penalty of activating a microwarpdrive by 50%. This may seem pretty weak, but in practice it makes the ships a lot more viable in PvP. Activating your microwarpdrive will normally increase your signature radius size by 500%, making you a hell of a lot easier to hit and increasing the damage you take from missiles. The speed boost will counteract this to some degree, but it takes a while to reach that speed, and you're very vulnerable in the interim. Reducing this to only 250% means you get all the defensive benefit of the speed increase without much of the vulnerability. In most cases, you'll actually take less damage with the microwarpdrive on than off.
In this week's EVE Evolved, I put together PvP setups for the at the newly revamped Deimos, Ishtar, Cerberus, and Eagle Heavy Assault Cruisers.