Depends on the feature set ...
Backwards compatibility is starting to gain more value so I imagine that more consumers will probably start expecting game consoles to have that functionality. Backwards compatibility has benefits for both consumers and developers. For the former, the customers get to keep their built up valuable backlog of games and for the latter, the studios can more easily maintain their tools ...
Hardware accelerated ray tracing is probably going to be THE main selling point of next generation consoles which will incentive developers to start making better experiences thus customers will be convinced that more value is added into their games ...
Just having backwards compatibility and ray tracing alone would probably make the new systems well worthwhile at $500 since it's just all around easier for the developers to author better content for their customers. Faster loading times and better remote play functionality would just be the cherry on top of everything else ...
