Hey there,
It's hard to tell if the storage is compatible simply because the device won't be available until a week from now, and we haven't seen many teardowns of the new one. However, it would surprise me if you couldn't swap out the SSD, given [link|https://store.steampowered.com/news/app/1675180/view/4347665658888576968|Valve's commitment to providing replacement parts|new_window=true] and their [link|https://www.ifixit.com/News/60131/how-valve-is-changing-game-console-design|previous collaboration with iFixit|new_window=true]. Currently, the worst-case scenario is that you transfer the data from your 3rd party storage to the OLED's storage. Still, fingers crossed that the storage drives have similar specs and are compatible with one another.