Nintendo patents show the Switch 2 Joy-Con may indeed work like a mouse -- and so might a new controller

Another patent shows that these Joy-Con will be able to slot into a wrist strap attachment that looks similar to the ones for the original Switch. A machine translation of that patent includes the word "magnet" 355 times, which seems to indicate that the wrist strap could attach magnetically to the Joy-Con. I'm guessing that means that the Joy-Con themselves could attach to the Switch 2 console magnetically as well, which has been rumored.