Well, it's not that there is no Grant, it's that he's not important like the rest of the cast and he probably won't show up until after the first film. As long as he's got a cameo of some sort I'm happy.
I also think Grant was just put into CVIII to make it easier
I like this art. I hope they go with something similar in the end but every time I imagine what it's going to look like I think of the Spawn animated series, which I like.