Wow.. changeable sensor boxes.. and.. just wow. There are certainly, some interesting and compelling options there. but... I'd be really hesitant about being an early adopter there. So for me, that probably crosses the X-T3 off my list for a couple years, and makes my choice simpler, without having to worry about rumors. Have a big trip coming up in November, and I'll be getting either a X-H1 or X-T2. Need to get in a store and get the X-H1 in my hands to see how it feels vs the X-T2.