The thing I find interesting is that the majority of the devices that are replaced every year are being replaced due to 'Software Changes' more than anything else. Is Dolby Atmos vs IMAX Enhanced vs DTS:X really anything more than software changes?
Sure, you sometimes have hardware changes, the move to HDMI, the move from 5.1 to 7.1 to 9.1 to 5.1.4 but these are all audio channels that require differing numbers of outputs and differing signal processing. In other words as long as you have enough channels how you use them is determined by software.
So, what is to stop a high end Pre/Pro manufacturer from building a Pre with a very strong processor and a good amount of (or upgradeable) memory, with say, 13, 15, even 20 channels of assignable output's and the best video input and output currently available (8K) to sell a high end product that can be upgraded over time using software updates rather than requiring new hardware?
Sure, 12K or higher will probably be next but it is very likely that the 8K will have at least 5 and maybe more years before it needs to be replaced. There are still far more people using HD TV's than 4K though that will likely change sometime within the next two years. How long will it be before the majority of people use better than 8K? What are the chances that more than 13 channels will become popular and common within the next five years? Getting down to the point, why do all these devices need to become obsolete so quickly?