Google has started sending out invites to their GDC talk scheduled for March 19th. While the invite doesn’t state much, the general consensus is that they’ll discuss their cloud gaming platform at their event. The public beta for Project Stream ended about a month ago, so this should give Google plenty of time to compile their data from the beta testing period.
There are also rumors that the invite may reveal a google branded console. This could be an interesting approach and could end up with a similar setup to the Nvidia Shield. This could be a console capable of playing Android games but could also tap into a cloud gaming service for high end gaming.