They still make a robot vacuum: https://www.vorwerk.com/de/de/c/home/landingpages/kobold/sta...

Well, I don't know how much you can innovate in that space, while keeping things reliable for decades like Vorwerk does. I own a (2n hand) TM31 that's probably 15 years old now, and I have friend with the TM21 (I guess?) which is like the first version and it has over 20 years now and it's still perfectly working.

Last versions, with big LC touchscreen, recipes on a cartridge o downloaded from Internet, and now I read that latest one can reach 160C to caramelize things or can do slow cooking.

I mean, I don't feel like they sat on the product, although the other day I saw a cooking robot from some other (japanese?) manufacturer which had 2 bowls in the same machine to cook 2 things at the same time. That seems an interesting feature Thermomix is missing.