So far there has been no official confirmation of when Nexus 10 2013 release is going to take place. The current Nexus 10 went out of stock on the Google Play Store back in October and it has not been restocked since then. This led to increased speculation that a successor is going to be announced soon, but so far nothing has been said about the next generation Nexus 10. As per the latest rumors circulating the internet, it is likely that Google might announce the tablet on Cyber Monday, which is tomorrow. Since there is no official confirmation, its best to take this rumor with a grain of salt.
Apparently Google is going to make the announcement on Cyber Monday because its hardware partner might be facing difficulties in production and to avoid the Black Friday and Thanksgiving shopping frenzy, the company has decided to make the announcement after the holiday weekend has passed. Previous rumors have suggested that perhaps ASUS has manufactured the Nexus 10, while it has also been rumored that Samsung might be manufacturing the Nexus 10 2013. Nothing is known for sure at this point in time. Though it wouldn’t come as a surprise if Google just announced the tablet through an official blog post, it did so for the Nexus 5 even when it was being speculated that Google will host a formal launch event for its next generation Nexus smartphone.