The chap in the Honda dealer had let me know that a new Jazz was coming and that perhaps I might be interested to wait until then. The current model that I tried was the 2013 version. Today I popped into the dealer to see the new one. It is indeed a good improvement over the old version. The styling on the outside is improved and it felt a lot more finished and swish on the inside. There is now a large touch screen computer interface which looks promising. However I think they have made the classic Samsung mistake of adding additional "touch" buttons to control the air conditioning. I.e. buttons that don't exist, but simply glow out of an otherwise shiny piece of plastic. These are horrible as they give no feedback. Agreed that neither do screen buttons, but they tend to compensate with more pixels and a pressed visualisation. Yuck. Shame, as otherwise it was looking good (other than the fact that I've now brought a car).
New 2016 Honda Jazz brochure featuring Mark Kermode and Simon Mayo podcast