Last year, Fuji impressed with its lens roadmap. This year, they're doing it again. I feel safe in saying that Fuji and Sigma are showing every other company how its done, at least as far as lenses go.
We finally get our first glimpse of a super-telephoto zoom that isn't blah like the 55-200mm. We also get our first glimpse of a very interesting 16-55mm, which is the long-missed 24-70mm equivalent zoom, with even more on the long end, extending out to 82mm equivalent. Granted, that zoom extreme will likely be too soft to be of much use.
I very much hope that Sigma gets into the X-mount game. It's not yet a replacement for a giant system like Nikon or Canon, but it is getting there much more quickly than Sony, Panasonic, Samsung, or Olympus. Bravo.