Series S does not need to be discontinued. They can simply introduce Series X only game, but this would suck and hopefully it won't happen.
This guy has a 100% developer point of view :
- tools are not perfect at launch, so we have to work more, and working is hard
- Series S has a less powerful hardware, so we have to optimize, so this is work, and working is hard
If you listen to developers, they always ask for the most powerful, unrealistic hardware, so they can make the most unoptimized code ever.
Series S is a great machine for consumers, and developers will have no other choice but to adapt to it.