@ryanCA summed it up best by saying that 200 owners generally don’t contemplate making the move to a 4runner. The 200 is the better vehicle in just about every way, not the least of which is prestige.
I previously had an FJ though, and honestly I miss it’s off road dimensions fairly often when I’m wheeling in the lumbering 200. I’d venture to say the 4Runner is actually a better (tidier) off road machine in most situations and probably has more range on a tank of fuel. The 200’s have very limited range, and most of us carry extra fuel when we are in the Southwest.
If it were me and I already had a TRD Pro 4R, I’d keep it. That’s a good truck and should serve you well. There’s also a much stronger aftermarket so you can individualize the truck to make it more unique.