They have indeed gone and done it, with the first results of Coca-Cola's acquisition of the Costa Coffee chain hitting the UK later this month. It is three types of coffee in cans from... the... fridge.
The three types of coffee the Coke scientists deem acceptable for chilling are the capitalised flavours of Classic Latte, Caramel Latte and Black Americano, and we may all feel very special today because the UK is the first territory in the world to get these potentially category-creating new cold beverages. At least we think you're supposed to drink them cold. Maybe the idea is you take them home than boil them up in a saucepan?
No, they are definitely for drinking cold, as Coke's press release refers to it as a "ready-to-drink" product and says nothing about taking it home and warming it up and adding milk. They do say something about the ingredients, though, with each can containing about the same caffeine as a double espresso, and between 95 and 120 calories thanks to a smidge of added sugar from the bottomless Coca-Cola fructose syrup lakes. They hit the fridges of Costa later this month.