I don't see the market for universal remotes going anywhere but up in the next 5 years.

It's been growing for the past 10 years and for the past 5 has really rocketed. The reason you may think you see less products is because Harmony has taken a huge percentage of the market.

I don't see CEC changing the way most people have their equipment controlled over the next 5 years. While devices are proliferating, the implementation just doesn't have enough traction yet to even register as a blip on the consumer landscape.

There's also always (foreseeable future, up to 10 years for this comment) going to be a market for an aftermarket or premium remote handset. Both in the retail and custom install channels. It's simply not practical to have HDMI linking absolutely everything together. Especially for esoteric things like lighting.