Keeping up with changing technologies is always difficult but sometimes the information can be exciting. At a dinner last evening the presentation was related directly to Fuji products...current and future.
As a result, I will make the following speculations:
The Fuji X100 got the ball rolling. Next in line was the recently introduced X10 which carries on the family tradition but with what I believe is a more practical solution for those of us that do not always want to be burdened with our heavy SLR's.
In January expect to see the introduction of the X300 (probable title) which will be very similar to the X100 but with interchangeable lenses. Likely a wide, medium and telephoto...all primes and probably fast ones. Senor will be anyone's guess but the existing sensor in the Fuji X100 will be a prime candidate.
X200...just a number that someone introduced to show possible line of succession.
There will be other cameras of course but not carrying the X heritage.