When manufacturers are forced to go ‘metric’ because of the ‘Global’ economy - they will use the opportunity to reduce product/quantity size again.
That was supposed to have happened many years ago in all fields but Americans resisted (especially with gasoline). Of course it has happened in some products.
That happened with liquor a long time ago.....you could once get a half gallon of bourbon; it's been 1.75 liters for quite a few years.
Along this general line, when I was in the fish biz some shrimp packers from Asia and Australian packaged their blocks of shrimp in 2 kilo packs (4.4 pounds).....since the U.S. industry was totally accustomed to 5 pound blocks, fortunes got made by way of 're-marking' those shorter weight imports up to 5 pounders. Instant 10 percent extra profit.