Armenia and the EU began negotiating an Association Agreement, which had included a Deep and Comprehensive Free Trade Area agreement, to replace the old PCA in July 2010. In November 2012, EU Commissioner for Enlargement and European Neighbourhood Policy Štefan Füle stated that the AA negotiations could be finalized by November 2013. The new EU Centre in Armenia, set to become the European Union's communication hub, officially opened in central Yerevan on 31 January 2013. However, on 3 September 2013 Armenia announced their decision to join the Eurasian Union. According to EU politicians, Armenian membership in the Eurasian Customs Union would be incompatible with the agreements negotiated with the EU. President of Armenia Serzh Sargsyan stated at the 2 October 2013 Parliamentary Assembly of the Council of Europe session that Armenia was ready to sign the AA during the November 2013 Eastern Partnership Summit in Vilnius, without the Deep and Comprehensive Free Trade Area component of the agreement that contradicts Armenia's membership in the Eurasian Customs Union. A spokesperson of EU Commissioner Füle responded a few days later by saying "No Armenia-EU document is being readied to be signed at a Vilnius summit" and “We’re trying to find routes for further cooperation with Armenia, based on the existing achievements”. This was followed by other EU officials who echoed this statement. No AA was ultimately initialed at the summit. In December 2013, the Polish ambassador to Armenia said that the EU and Armenia were discussing a less in-depth bilateral agreement on their relations, and did "not rule out the possibility that it may be an association agreement in a different form". In January 2015, the EU commissioner for European neighbourhood policy and enlargement Johannes Hahn stated that the EU was willing to sign a revised AA without free trade provisions. Negotiations were launched in December 2015.