By "clone" do you mean visually, or gameplay? I don't doubt it's going to share certain similarities to ME due to using the same engine.

I don't think it's going to be anything like ME otherwise, I'll be disappointed if it is. I have the impression that the game is going to be heavy on stealth/undercover elements, and that there will be multiple ways to achieve your objectives. At least that's what the devs have implied.