I am also lucky, I got a Suica in 2017 and I used it ever since in every trip to Japan! It seems to last quite a while.
Maybe I should get an electronic Suica on my iPhone just in case though.
After looking around Nagoya's Manaca websites [0] they don't seem to talk about any suspension of card distribution.
JR West ICOCA also seems like is business as usual [1].
Still, it is quite surprising to see an early 00s piece of technology which does not use really advanced chips to have production shortages.
If anybody in Chicago is going to Japan soon and needs one...
(ok, actually I have a compatible manaca from Nagoya, maybe those are still available?)