In a recent interview, Valve stated that they are looking into improving the Steam Deck further, including the Steam Deck 2.
You'll have to wait a long time for a Steam Deck 2, steam deck
Valve reveals Steam Deck 2 plans, prototypes, and more!
Steam Deck SSD installation: How to upgrade your storage drive - Dexerto
Valve's Steam Deck might be easier to repair than you think
Steam Deck 2: Leaked specs, price & benchmark speculation - Dexerto
Valve's Steam Deck teardown is fascinating – and scary
Steam Deck Teardown: Everything Valve Said Not to Do!
You'll have to wait a long time for a Steam Deck 2, steam deck
Valve confirms Steam Deck 2 is coming but not anytime soon - Dexerto
How to play Battle.net games on Steam Deck - Dexerto
Moss developers break down PS VR2 porting process: “It's a serious effort” - Dexerto
Valve lifts the lid on Steam Deck 2 plans but it's going to be a while - Dexerto