The tonberry kings can be challenging, mainly because they break the damage limit with one stab. I do wish they had a Tonberry king and a Jumbo cactuar hunt, that would be fun. Keeps some old favourites in there. Though I understand that changes are bound to happen as a series like final fantasy continues, though classics that have lasted with the series should remain. Sure, they vandalised moogles forever and changed the summons into airships but hopefully they will come back as monsters in ff13. (the tonberrys not the summons, though that's an idea)