I have never seen window switches placed on top of the door. Is this new for Toyota? and what would happen if they get wet when the window is open
The Nissan Armada and Chevy Astro/GMC Safari, if I'm not mistaken the switches are up on the door sill. And I just noticed, if you gap the windows slightly for ventilation while parked, it looks super easy to hit the master lock/unlock switch. While the 4th's switch locations are not as accessible, it's a lot more secure.
If the seating position is anything like the 4th (judging by the pics it looks the same), Toyota should've located the switches below door handle (for exiting, in the area that appears to be a small pocket) that's in front of the silver grab handle and tuck the exit handle in further so it doesn't protrude so far into the cabin. Eliminate the silver pull handle and put a small tub/pocket for the door closing handle in the arm rest area behind where the silver handle is located.
Toyota could've used an arm rest design similar to this:
Photo courtesy of samarins.com.
Or even this, if they prefer the vertical style door close handle from the current gen Camry:
Photo courtesy of motortrend.com.
At the very least, at least Toyota kept both driver and passenger side doors looking as symmetric as possible. The last Mazda RX-7 and MX-6, the door panel designs were totally different on each side. One side has the vertical grab handle and the other was flat like like first Toyota interior pic above.