I don't like any of those ideas except for automated balls and strikes. That one is overdue.
I think baseball should be left alone. It's a slow sport which clashes with the hyper ADD of modern times, but its slow grind is part of what makes it special.
Of course, I'm old, so I'm not the demographic they care about.
Mountain lions freak me out the most. They can outrun you, out climb you and they are masters of the ambush. Just part of mountain living though. Fortunately, they are shy and mostly come around at night.
That spider, though, HELL NO!!