Bohemia Interactive announces Arma 3 has sold over two million copies, also taking the occasion to unveil plans for future updates to their military shooter sequel. They say they have two releases coming for free between now and the release of a full expansion in Q2 of next year. This post offers the roadmap, and here's a bit from a separate press release on expansion plans:

The Nexus and Eden platform updates lead up to the roadmap's focal point: a major Arma 3 expansion in Q2 2016. Titled 'Arma 3 Apex', this expansion will feature the 100 km2 South Pacific destination of Tanoa, which was first shown during the PC Gaming Show at E3 this year, plus a co-op campaign, new vehicles, weapons, and characters. One of the central themes of the expansion is near-future combat, which players will be able to recognize by the introduction of new vehicle classes such as VTOL aircraft and other new gameplay elements. As with previous Arma 3 DLC, the expansion will be accompanied by a major free platform update that seeks to address important 'legacy' issues related to Arma 3's multiplayer, interaction mechanics, and discoverability of official and custom content. More information about the Arma 3 Apex expansion, including specifics on pricing, purchasing options, and early access availability, will be communicated next year.