1.This is for the 360, it will not have a mouse.
2. It is unknown if it will or not, they have stated many times that they are wanting the battles to be interactive and very much strategy based. *They are also trying to take the focus of resources (*this is disputed).
"Do not die a coward, a villan, or a hero, die a servant who dies for others"

Check out my story, earth in flames, the occupation of earth.