It will be funny:
Technology - I think that we would fly over the cities and over the country with an unlimited technology, although this is a technology expected for the next years.
Science - Cure for more diseases and for the nature… we have to stop pollution, and the science is what we need for this.
Governments - Less corruption and more investiment in security, health, education and stuff.
Environment - Clean and safe energy. Technology against global warming and climate change. The humanity would solve the water problem in continents like Africa.
Conclusion - There'll be some problems. It's impossible escape them. But the world will be better. I'm sure it will, because the Global Warming, the wars, water problems, will serve as lesson for we.