Cascara

 Cascara is the skin of the coffee bean and used at Alan Ducasse's chocolate shop in Coal Drops Yard, Kings Cross as part of hot and cold drinks

Nitro

Nitro iced coffee - coffee infused with nitrogen similar to a soda fountain and apparently nitrogenated coffee is extra smooth and looks a little like a Guinness.  On tap at 200 Degrees, Birmingham and Starbucks.

Cold Brew goes mainstream

Starbucks feature their Cold Brew

 plus filter/pour over

 and better teas than many of the chain cafe operators

Cold Brew Coffee

Coming to a cafe near you - the latest trend in cold drinks: Cold Brew coffee.

 The ground beans need steeping for 16-18 hours so probably a product that you will buy in  already made.