I was getting this anyway but McGuinness on art has me sold, Jennifer is going to look great big or small.
I am thinking pretty much this. Both promos do contradict eachother visually so it would make sense that Jen will switch between the two forms as of how is another matter. Plus this opens more opputiniuty for guest appearances, Jason Aaron can use the Hulk form for his run and anybody wants to use classic Jennifer has that option now.