New OLED screen. New APU. And lots of small hardware improvements.
Well yeah, otherwise it will end up like Atari. No sales for the first one because everyone is waiting for the next one.
Itβs smart. Also, developers have a solid benchmark to set their games to. Console has long had the benefit of a stable hardware set over the course of many years, which makes it easier to develop to the broadest possible market. Skipping incremental APU updates has a benefit of keeping a longer benchmark for game developers hoping to boost sales by targeting the market with handhelds. Valve was pretty clear in their communication in this regard, which is great.