It's interesting, and this could increase longevity and replayability too; I hope we will have more innovation and new features in the Game-play mechanics and dynamics; CPU power will be significantly more exuberant, probably among the biggest jump if not the biggest of all Generations, and I hope Developers will make a good use of it ;)
What does it mean to be the biggest jump of all generations? Because given the exponential growth when it comes to processor transistors over time, each new generation pretty much outperforms all previous generations combined. With that, the PS3 -> PS4 was the "biggest jump of all time".
I hope the PS5 really pushes boundaries. It's freaking exciting as hell when new hardware comes out, and I don't want to diminish that fantasy, but I do like being educated when it comes to this stuff.
The generational leap in CPU power will be massive, really massive; I'm expecting 8-10X, according to the different scenarios; and this will be the biggest advantage of Next Gen.
CPU boost from PS3 to PS4 was modest, so I'm expecting much more improvements in the AI, physics, system collision, interactions with the environment, animations, Gameplay, etc.
I was playing FarCry5 yesterday on PS4, and though it looks sweet, and play cool, you notice immediately the big limitations on the CPU side and the lack of more sofisticated environment interaction : you can go through vegetation and small trees like it was fresh air :D the simulation is non-existent in some cases, and from what I remember, it's a step back compared to FarCry4; in order to increase a bit the level of details and overall graphics and other things, Devs had to tune down part of the system collision(give me a break if I'm wrong, but this is what I noticed).
So, I'm very excited about the fact the CPU in the Next Gen will be much more powerful; I do care about better graphics, and we will have of course, but I'm looking for the Next Gen Factor, and the clear sign that Next Gen has arrived.