Citizen science is in constant growth, in terms of knowledge areas, projects, science engagement organisations, publications, geographical areas, physical and virtual spaces, impacts and, hopefully, participants’ profiles. A relevant issue concerns its various ethical and political implications. We ask whether: 1) the current development of CS is properly achieving a true democratisation of knowledge among diverse social groups; 2) the necessary ethical standards are being applied, above all in terms of fair relations between the different social agents; 3) more robust citizen communities are being created in terms of scientific culture, true cooperation, mutual trust and social cohesion; and 4) science engagement organisations are playing a central role in facilitating connections between society as a whole, research and policy. Considering the impacts of the White Paper on CS for Europe (Socientize Project 2012-2014 FP7-EC), we want to think about the best future way of CS.