A full frame x100 with a fast 40mm or 50mm lens!
( I'd prefer 50mm, but 40 would probably be the smarter move. More versatile, closer to human eye, & can be smaller size. )
If I can be greedy:
throw in IBIS, top shelf weather sealing(on both camera & lens), and the latest (non- xtrans)Sony sensor.
I bet Fuji couldn't make ^that^ camera fast enough.
*And when sales go through the roof, hopefully a FF x-pro the following year.