Phew that was a close call I thought that I was going to have an attack of GAS.
A tilting screen and a stabiliser would make this more appealing.
I've never found the manual focusing aids in the X100S to be very useful so putting the split image into the optical viewfinder ( if I've got that right? ) seems pointless.
The camera I really want to see updated is the RX1. Add a pop up EVF like RX100iii and the A6000's AF system. I'd be in camera heaven.