Volunteering England have issued a briefing sheet, outlining some of the issues around the proposed clause in the new Citizenship and Immigration Bill which would mean people who volunteer can fast-track their citizenship applications.
Volunteering England have more information in an article, "Government 'active citizenship' proposals" in their policy watch section:
Whilst attempting to bring together a myriad of immigration legislation, the Bill does however introduce an additional process for those seeking citizenship.
The "activity" element of the Bill highlights the Government's "responsibilities" agenda and develops the concept of "active citizenship" as a way for a migrant to speed up their application. It is designed to encourage and reward those migrants who volunteer within their local communities, making conscious efforts to integrate themselves locally.