They are planning to bring it back in Scotland, as a more univeral scheme like the GP descirbes in Norway. The timeline keeps getting pushed back due to lobbying from the drinks industry though: https://www.theguardian.com/uk-news/2021/dec/14/scotland-del...
Growing up in Scotland collecting Irn Bru bottles was something you could do for "sweetie" money. I was disappointed the last time I looked to find out that they have now decommissioned their bottle cleaning plant. Apparently conventional recycling has resulted in the rate of return being too low.