A lot of people think Backbreaker is nothing but an advertisement for the technology, and I'm inclined to agree that is a major motivation. I think if it's revolutionary enough, Madden could very well license their engine, and tune it to fit their style of play (implementation will be a lot easier once it has been done). That said, I'd still think that process (and I don't know anything about development) would take at least 2 development cycles.