The important thing is that Arnold is supposed to be the badass action star. I would love to see a slow motion scene with Arnold being shot and blown to pieces by the Predator cannon.
The Predator is badass enough to kill Arnold. I mean, good uncle Yautja won't be killed again by a septuagenarian Arnie. Please give the Predator the respect it deserves. Nobody should be able to survive a Predator twice.