Already on the table, we have various forms of Direct Democracy including referenda of various sorts and scales. The Harrogate options. And of course, I make no bones about advocating a Localism under which decisions are taken at the lowest efficient level.
Most proposed changes to the way we use democracy come from altruistic, well meaning people. But beware that amongst the versions offered are those geared at reducing democracy, at securing the power of the establishment. Sortition and Demarchy both involve the citizens' jury being briefed on the issues under vote by a team of 'experts'. The question of course is who picks the experts.
Excuse my cynicism, but I spent 30 years dealing with public objections to various developments and one of my favourite methods was the charette - working design sessions in which small groups of the public work with engineers and designers to refine development proposals. You can guess what happens. I used to employ young female architects from choice - nothing is as guaranteed to silence a Bloke as his technical ignorance being shown-up. So she would say " ..It has to have this mass and orientation due to the solar gain in this location, of which you will be aware .." or "...you'll appreciate the modal movement patterns that mean this road layout is essential" or similar, to which they would generally nod. They'd give way on colours, and tree varieties and such things. Things that could be changed.
Well, it may be an effective way of reducing public objections to a new development, but for matters of democracy it really won't do. The authors of the 1948 UDHR, their eyes fresh with the horrors of the death camps and the Jap inhumanities, worded Art.21 very, very carefully;
Article 21So by all means let's discuss changes. But at a time when I've frequently had to leap in to defend the absolute right of everyone to vote - every white van man, every ordinary, confused pensioner - to make their choice, please let's always remember the pain, the anguish and the struggle of our forebears to establish this right in the first place.
(1) Everyone has the right to take part in the government of his country, directly or through freely chosen representatives.
(2) Everyone has the right of equal access to public service in his country.
(3) The will of the people shall be the basis of the authority of government; this will shall be expressed in periodic and genuine elections which shall be by universal and equal suffrage and shall be held by secret vote or by equivalent free voting procedures.