As for innovations, I definitely think we'll continue to get higher powered and lighter electric setups, simply because the electric car trend is helping to spur the development of battery and motor technology. I think the above poster is right that glow will decline in use, but I also think gas will too as big electric systems get cheaper and more practical. In airframes, I think we'll see the decline of Monokote covered balsa in favor of painted composites. That will happen because it makes for better scale realism and can be lighter, especially with electric power (no fuel proofing). Perhaps we'll also see more automation like tail gyros and such to make planes fly better, maybe even fly-by-wire systems where an onboard computer processes your control inputs then corrects for wind turbulence and such to make the plane fly smoother. What drives the changes is consumer demand. We have computer radios now because we wanted them, good electric power and small gassers because we wanted them, and ARF's because we wanted them. So I think it's pretty easy to predict what will be available in the next few years simply by looking at what people want that they don't yet have.