The inability to make a considerable in jump is graphical prowess/power in general is what makes me think that Sony and Microsoft will look to Nintendo to get inspiration from.By that I mean that they will rely upon a "gimmick" to sell the next generation.
And my guess, at least for Sony, is that VR is going to be that gimmick.That is also a reason that Sony is wanting to market it so much.There are two reasons in my opinion:The first one, is to test the technology and see how feasible it is to sell at a mass market(trying to find the sweet spot for prices and so on).But the most important(second reason)reason is to get people accustomed and popularize the idea of VR being used in a gaming device.And as many users already said across several forums, VR is extremely hard to promote, and the best way to understand the potential of it, is by using it and seeing for yourself.
It will be really hard to try to convince people to upgrade the console when there is next to no difference betwenn them.So making the experience unique to the PS5(in this case) is crucial for its selling point.
My (locked) thread about how difficulty should be a decision for the developers, not the gamers.
https://gamrconnect.vgchartz.com/thread.php?id=241866&page=1
