Mistwalker needs someone like Hiroyuki Ito is all. Sakeguchi never really designed battle systems, but to be honest, I find that very few current RPG companies have good battle systems anyway. I think the MegaTen team has the best one on the market currently. XII's was good but needed some more testing and a few modifications but considering how much the fan base freaked out, I doubt we will ever see it again, which is a shame cause it was one of the more imaginative systems to come out of SE in years.