Virtual reality is experiencing a resurgence with the development of new head-mounted displays like the Oculus Rift. However, virtual worlds must first be developed to provide content and places for users to interact within virtual reality. A Delphi exercise from 2011 predicted trends for virtual reality and virtual worlds over the coming years, including the need for easier and more integrated hardware, a balance between user creation and commercial content, and the potential societal and economic impacts. Key issues that will influence the adoption of virtual reality include competition beyond Oculus, the impact of Facebook's acquisition, the development of control devices, managing hype, and avoiding the pitfalls of earlier virtual worlds.