Enceladus really found good conditions for life. We need to conduct research and populate a new planet.
Why you want to populate another planet? The humans have destroyed the earth with all the pollution and deforestation. IMO, we should never colonize Enceladus. That planet must be reserved for the non-human species.
I do not think that the plans of scientists included the colonization of another planet. It is very expensive and is not relevant, but should always be alternate. You never know what will happen. Maybe someday all the supporters of bitcoins decides to leave earth and establish his world.