I would like to see a world that, for the most part, embraces the abundance provided by technology. Smartphones, for instance.
At the same time, voluntary simplicity in terms of space used and resources consumed.
There are recent trends in electronic technology that use less energy and space. Microchips versus vacuum tubes, heat pumps versus woodstoves.
I would like to see less cultural pressure to work long hours and consume. Having more free time and work life balance would be good.
I would like to see less use of the private automobile due to the space and resources it consumes. Also the safety / accident problem. My ideal world would see more use of public transit and bicycles. Bicycles for health and the beauty of what can be seen at a slower pace.
High tech transit, like the Skytrain in Vancouver, BC. (actually started in 1986!) is good, but the simple city bus works also. We already have, at hand, much of what my future world would use.
Life could generally be at a slower and at a less stressful pace, but technology would be available and used wisely.
Most people would live in urban settings for transit, walking, bicycling and to protect farmlands from sprawl. Some folks would live in rural settings; especially if engaged in resource production such as farming, forestry and tourism.