There was one article which was dated on the anniversary of Neil Armstrong's first steps on the Moon, now over 42 years ago. The mastery of energy will soon lead to the mastery of space. This is what is holding space exploration back. If the energy source is great enough, as it is with fusion, then single stage to orbit vehicles can be built. These should make access to space more routine and therefore cheaper. Access to space will become available to anyone who is interested in exploiting its vast economic potential.
Colonization will follow as people may want to settle space as they did the in the old frontier days in the US.