The Linux kernel has been updated for some new hardware that still includes the AMD Van Gogh APU, which is currently only used in the Steam Deck. Popular speculation is that Valve will release an updated Steam Deck, one that still uses the same APU (so same performance), but had other changes to the hardware. Possibly different screen, larger battery, etc.
Possible code name for the hardware is Galileo.
If you want more/better info, I’d recommend reading the linked article.
I just got my steam deck a month or so ago during the summer sale but I think it’d be an instant upgrade for me.
I love the thing and anything it improves on I’d want. Even better if they make the upgrade/migration seemless so I can just “clone” my existing deck to the new one.