Twitch is revamping its live-streaming systems in 2016, starting with a rollout of HTML5 video players and controls in Q2 2016. This means Twitch is officially ditching Flash. Second, Twitch's private-message program, Whispers, is getting an update that pops out personal messages so users don't miss them. Plus, these conversations will transfer from web to mobile and vice versa. Twitch will also allow streamers to create custom thumbnails for their past broadcasts and highlights. All of this info comes courtesy of today's TwitchCon 2015 keynote address.