The fixed gear craze continues to soften... I have already seen kits to turn your fixed gear, (with road or track dropouts, adaptors provided) into a 6 speed bike, assuming 120mm spacing...
There may not be mobs waiting anxiously at the framebuilder's to correct prior deeds, but that will happen.
Friction shifting will be the new "skill"... To master, who needs index... Forget electronic shifting, friction is more reliable.
Bar end controls will be a hit again, for those who just are too worried about moving the hands from the bars...
Bicylcles become the icon of freedom, no "driverless" car syndrome of sliding incompetence.