I just reserved my copy at EB Games.
As of now, it's coming out in early April so I hope it's worth the wait.
Here is some of what I know:
The Good: You can team up with others and fight together.
You can have or be a side-kick
Yes, it is an mmorpg
The Bad: The developers decided that they would not have capes as an option when customising your hero.
You can't play as a super-villian-expansion pack anyone?
You can't drive vehicles-yet again, the developers are planning an expansion pack for vehicles.
Also, in a later-coming expansion pack you will also be able to create your own layers, hideouts, or "fortresses of solitudes".
Hope that helps you out.
here check out the website at www.cityofheroes.com