Maybe this is where the update 14MZ or future 18 is going.
Time will tell, but I think I will wait to see what is next before I buy a new transmitter.
What does the S.Bus system do?
The innovative Futaba S.Bus system lets you unleash your flight system's full potential and cut down on cable clutter at the same time. It uses digital serial data communication technology to transmit control signals between your receiver and servos.
A single S.Bus cable can carry signals to as many channels as your transmitter can handle. You no longer have to worry about plugging in the wrong servo to the wrong channel, because each servo knows what channel it is dedicated to in advance.
SBD-1 S.Bus Decoder Cables allow the use of existing analog and digital servos, too. By providing today's pilots with tomorrow's technology, the Futaba S.Bus system is nothing short of revolutionary – and the revolution's only beginning.
For more info see:
http://2.4gigahertz.com/sbus/