Aside from the aliasing, the stuttering and FPS drops are things that could be easily remedied in a patch, right?
Also, if Havok has been such a performance hog for the series, why continue to use it? Would something like the Euphoria engine be too much as well?
Euphoria isn't an option for the vast majority of companies because of how NaturalMotion gets involved with the development of the game. It's well beyond the scope of simply licensing the tech.