I would say that they are trying to make it perfect with the new technology they have at their disposal but the truth of the matter is, its still going to have problems no matter how much time they put into it. Its the first of its kind for the next gen systems and I'm sure as shit that it will not be perfect.
I bet they will use the grappling system from the old THQ wrestling games. Which were awesome but they will tweak with it alittle bit to make it unique.
Get this game out now so we the players can tell you what needs to be different and begin working on the second UFC game by next year. Don't make us wait another year for the first installment.