There is some kind of suspense that Google seems to be hiding. It seems to be working towards introducing a new alternative to Android. Read more at timesofindia.indiatimes.com
There have been quite a few details revealed regarding the new OS. The new OS might be called as Fuchsia. A new website by the name Fuchsia.dev has been developed by Google recently.
There are various details revealed on the website including instructions and many other details.