Steam Deck OLED arrives November 16th, with a high dynamic range OLED screen, longer-lasting battery, faster downloads, and much more. http://steamdeck.com
I can afford it and the chances are really nice, but I won't buy the new version. There will be a Steam Deck 2 in 2-4 years with substantially better hardware and until then, the LCD version will do just fine.
Yeah, this is what I'm thinking as well. I got one during the summer sale this year; these improvements are nice but not worth trying to upgrade so soon.