Adami, I read some of the rumors about Avengers dealing with the Kree-Skrull war. But what they said was that Loki would use the Cosmic Cube to open a portal that lets the Skrulls into Earth which leads to the Avengers assembling.
Sounds like what I read, I guess I just assumed the Kree-Skrull war since I read about the Skrulls being there.
I think that is something that was floated a year or so ago. I don't believe that the Kree or Skrulls will be part of the actual film. Although that would be cool.
Apparently Loki is involved in a big way.
Indeed he is, but he isn't a fighting force, he's a manipulator. He needs something to manipulate that will do the actual fighting. In Thor he had Gort, but in this....unless he has the Hulk, he'll need something that can stand up against Thor, Iron Man, Captain America, Hawkeye, Scarlett Johansons Boobs, and Possibly the Hulk.
And the Cosmic Cube was created by the Skrulls I believe.