The new music continued the dark, electronic themes of "Amor Vincit Omnia", and was partially inspired by themes of World War I and II. According to "Rock Sound", "the band have retained most of their heavy hooks to create a great crossover record. A track like 'Last Man Last Round' will fit into many Pendulum fans' heads, whereas their progressive elements are still prevalent in 'Open Insurrection'". The album was co-written and co-produced by Courtney and Tom Bellamy. The band played a series of live shows in London, Germany and the Netherlands during summer 2010, a short tour in Europe and the UK in November and December, and another mini-tour in Germany in February 2011. A one-off concert at London Scala marked the band's biggest headline gig to date, and included contributions from Tom Bellamy and the string section of Clean Bandit, as well as one of the first performances of "Bullitts Dominae" (a fan favourite which had previously not been played live). On 9 August 2011, the band announced that they were splitting up, with final shows in the UK in November 2011. On 5 November 2011, the band released their final EP, "Valour". On 12 October 2018, Pure Reason Revolution were announced as co-headliners of the Midsummer Prog Festival to be held in June 2019 at the Openluchtheater, Valkenburg, Netherlands. Jon Courtney and Chloe Alper were the only members of the band to return. They have announced that they will release a new album, titled "Eupnea", in April 2020 on InsideOut, which will be stylistically closer to their first release. The band were also scheduled to appear at "Prog in the Park" as part of the Ramblin Man Fair in Maidstone, Kent, England on 18 July 2020.