HTML has been around since the the web was invented and in the last few years has become more versatile, supporting complex interactions, visual layouts, and animation. During this time Flash began having delivery problems on mobile devices, security, and other issues. Adobe, the makers of Flash, have said they will stop supporting Flash on December 31, 2020. To prepare for this, common web browsers, such as Chrome, Firefox, Edge, and Internet Explorer have already begun to push Flash out by disabling the Flash plugin and championing HTML.
While we never know what new thing will drive better training solutions, HTML has always been here and is always evolving. By developing in Articulate Storyline, you can rest easy and know your audience will be able to view your eLearning now and in the future. Reach out if you want to know more about Flash, HTML, or Storyline.