Remarks made today by Massimo Vian of Luxottica during a general meeting in Milan, Italy may indicate that development of Google Glass continues at a solid pace, and a new version may be out soon. Luxottica announced a partnership with Google on their wearable device project in March 2014, but sales of the first-generation Google Glass Explorer Edition ended in January 2015. The company is reportedly working on an all new design for the next-generation device.
According to The Wall Street Journal, Vian said:
"In Google, there are some second thoughts on how to interpret version 3 [of the eyewear]. What you saw was version 1. We're now working on version 2, which is in preparation."
Google will likely announce the next version of Google Glass when it is ready for the general public, rather than launch a limited testing program as they did with the first version.
Source: Wall Street Journal