Google Glass has been around for a few years, starting with Sergey Brin skydiving at Google I/O a few years ago in San Francisco. Google had opened up the Explorer program. Which basically allowed developers to pay $1500 for the wearable, although you did need to be invited. At first glance, many thought this was to build up the app ecosystem at first. But years and years went by, and Google still hasn't opened up Glass to everyone to buy just yet. The first generation Glass was actually pretty well built. Although as always, there are some improvements that could have been made.
Earlier this year, Google shut down the Explorer program. Leading many to believe that Glass was dead. There also hasn't been many updates about Glass lately, basically since Android Wear was made available. And considering Android Wear looks totally different - and some say much better - than Glass' OS, many thought Glass was dead, as well. Google has said it's not, and according to a report from The Wall Street Journal, it appears that Google is working on the second generation hardware now and should be available soon.
Google's Eric Schmidt stated that Glass was a fundamental platform for Google, "We ended the Explorer program and the press conflated this into us canceling the whole project, which isn't true. Google is about taking risks and there's nothing about adjusting Glass that suggests we're ending it." Schmidt said that Glass is a "Long term project". Which reminds us of those driverless cars that Google's been working on for years (who knows if those will ever be legal though).
With the second generation Glass, Google is planning to continue targeting the Enterprise with their Glass at Work program. Which makes more sense than targeting the average customer. As Glass works better in some fields of work like the medical field and sports. It's a great teaching device in those fields actually, since it can record what you're seeing. We'll likely be seeing a better design - maybe more minimal - in the next generation Glass, as well as a better camera and better battery. Google said that Glass had adequate battery to get through a full day, but many found that to be untrue.