It looks like a really promising update from Fuji. Autofocus and speed have tended to be their main weakness and it seems that the X-T3 really lifts them up in that area.
The upcoming 200mm f/2 looks nice too and is a step in the right direct for building their telephoto options. It's still hard to look beyond Canikon for wildlife just because of the amount of options for lenses. Fuji could do a lot worse than following Nikon and releasing some Fresnel 300mm f/4 and 500mm f/5.6 lenses.