Despite the wide range of options, some people are keen to stick to the way key figures in history are honoured on banknotes.
“Having looked at all the options I really do think that historical figures should still be number one choice. Might it be possible to include Diana Princess of Wales somewhere?” asks Elizabeth, from Oxford.
But with cash used in only 12% of transactions, some say the time and effort involved in a huge overhaul of notes is unnecessary.
“We are sadly faced with the prospect of a cashless society, with so many places refusing to accept my cash, so I have to wonder, why bother changing the design?” says Dawn in Redditch.
Ian in Leighton Buzzard is much more blunt. “I would suggest that the new banknotes look like a mobile phone because that is how people are used to paying,” he says.